Thursday, July 23, 2026

The Ellensburg, WA sky for the week of July 25, 2026

Saturday: Venus is one fist held upright and at arm’s length above due west at 9:30 p.m.

Sunday: Have you ever planned a vacation to a place because it was supposedly the up-and-coming locale? Then, when the vacation time finally arrives, you find out the place doesn’t live up to its billing? Over the past decade, astronomers have revisited earlier findings about the planetary system of the star Tau Ceti, one of our closest Sun-like star neighbors at 12 light years away. It was originally thought to have four planets classified as “super-Earths” with two of the planets being on the edge of the habitable zone where the temperature is just right for having liquid water on their surface. Time for a va-ca-tion! Well, not so fast. Astronomers now think some of the planets may be too massive for complex life to form. And the Tau Ceti system has ten times as much mass in dust and rocks as our own solar system. On the plus side, if you want to save the Earth, the planet Tau Ceti e is the place to go. In the book and movie Project Hail Mary, Ryland Grace and the alien Rocky went there to discover how to kill the astrophage that was consuming the Sun’s energy.

Tau Ceti is two fists above the southeast horizon at 4:30 a.m. For more information about the system, go to https://skyandtelescope.org/astronomy-news/four-exoplanets-may-orbit-nearby-sun-like-star/.

Monday: Mars is two fists above the eastern horizon at 4:30 a.m. Saturn is four and a half fists above the south-southeastern horizon at this time.

Tuesday: Mizar is a well-known binary star in the constellation Ursa Major. You can find it at the bend in the Big Dipper handle, three fists above due northwest at midnight. Its name is Arabic for waistband. Mizar has an optical double called Alcor, which is less than a pinky width away and can easily be seen with the naked eye. Optical doubles are stars that are close together in the sky but do not orbit a common center of mass as true binary stars. Not wanting to deceive sky gazers who call Alcor and Mizar a binary star, two stars that DO orbit a common center of mass, Mizar actually is a binary. It was the first binary star system discovered using a telescope. Mizar A and Mizar B are about 400 astronomical units apart from each other and about 80 light years from Earth. 400 astronomical units is about 10 times the distance between the Sun and Pluto.

Wednesday: Tonight’s full moon is in the constellation Capricornus. The Wishram, Haida, and Tlingit people of the Pacific Northwest call the July full moon the salmon moon. This is the time of year the salmon return after spawning season.

Thursday: The Southern Delta Aquarid meteor shower peaks early, early this morning at 4:00 a.m. In case you want to sleep through the night, this shower has an extended peak into mid-August. Meteor showers are named after the constellation from which the meteors appear to originate. These meteors appear to come from a point in Aquarius near the star Delta Aquarii, also known as Skat. This point is about two and a half fists above the southern horizon at 4:00 a.m. The moon is close to full, obscuring the dimmer meteors. For more information about this year’s shower, go to https://earthsky.org/?p=159138. Meteors are tiny rocks that hit the Earth and burn up in the atmosphere.

Friday: The Perseid meteor shower peaks in a week and a half. But there will be an increased number of meteors over the next two weeks. If the Moon is out when you want to look, position yourself so you are blocked from the Moon’s light. The meteors appear to come from a point just below the W of the constellation Cassiopeia. This point is about two and a half fists above the northeast horizon at 11:00 p.m. By dawn, this point is about seven fists above the northeast horizon. If you fall asleep or forget to set your alarm, you will be able to observe this shower from about 11:00 p.m. to dawn for the next two weeks in about the same location in the sky.

The Perseid shower is one of the longest lasting showers. For tips about optimizing your viewing this year, go to https://earthsky.org/?p=165416 These meteors are sand to pea-sized bits of rock that fell from Comet Swift-Tuttle. They travel about 40 miles per second as they collide with the Earth and burn up in the atmosphere.

The positional information in this column about stars and planets is typically accurate for the entire week. For up-to-date information about the night sky, go to https://nightsky.jpl.nasa.gov/planner.cfm. All times are Pacific Time unless noted.

Thursday, July 16, 2026

The Ellensburg, WA sky for the week of July 18, 2026

 Saturday: Venus is one fist held upright and at arm’s length above due west at 9:30 p.m.

Sunday: Zubenelgenubi, the second brightest star in the constellation Libra. The name means "southern claw", a holdover from the time when this part of the sky was associated with the neighboring constellation of Scorpius the scorpion. Zubenelgenubi is a binary star system, easily seen with binoculars as a white and yellow pair. To a person living on a planet orbiting the dimmer of the two stars, the brighter star would be nearly as bright as the full Moon appears from Earth. Zubenelgenubi is two fists above the southwestern horizon at 10:30 p.m.

Monday: Take a two and a half hour walk today. Too long, you say? 57 years ago today, Neil Armstrong and Buzz Aldrin took the first ever walk by humans on another world. They spend two and a half hours setting up scientific instruments and collecting rocks for study back on Earth. Their colleague Michael Collins orbited the Moon in the spacecraft the astronauts would use to return to Earth. While everyone seems to know about Armstrong and Aldrin, spend some time learning more about Collins by reading https://time.com/5966399/michael-collins-appreciation/. The bright star Spica is a half a fist above the moon, low in the southwestern sky at 10:00 p.m.

Tuesday: Mars is two fists above the east-northeastern horizon at 4:30 a.m. Saturn is four fists above the southeastern horizon at this time.

Wednesday: Capella is the fourth brightest star we can see in Ellensburg. It is the most northerly bright star. It is a binary star consisting of two yellow giant stars that orbit each other every 100 days. At 10:17 p.m., Capella is less than a half a fist above due north.

Thursday: What you see with the naked eye isn’t all that can be seen. While astronomers can learn a lot from observing the sky in the visible wavelengths, many celestial objects radiate more light, and more information, in wavelengths such as radio, microwave, infrared, ultraviolet, x-ray, and gamma ray. In 2012, NASA launched the Wide-field Infrared Survey Explorer (WISE) to study objects that radiate in the infrared range such as asteroids, cool dim stars, and luminous galaxies. For an interesting comparison of how different wavelengths show various aspects of celestial objects, go to http://goo.gl/nvuax. If it weren’t for infrared telescopes such as WISE, astronomers would not know about the significant amount of dust in galaxies. If you’d like to learn more about galaxies, the CWU Lydig Planetarium has free shows at 3:00 p.m. and 5:00 p.m. today. They are in Discovery Hall, room 101. Here is a Google maps link: https://maps.app.goo.gl/Nwp1e5t7qXk5bfE9. Parking on campus is free after 4:30 p.m.

Friday: The bright star Antares is about a half a fist to the upper right of the moon, low in the southern sky at 10:00 p.m. Being bright doesn’t necessarily mean being big. But in this case, it does. Antares is a red supergiant star. In the visible wavelengths, Antares shines 10,000 times brighter than the Sun. But since Antares is much cooler than the Sun, its energy distribution peaks in the infrared. So, across all wavelengths of light, Antares shines 60,000 times brighter than the Sun.

The positional information in this column about stars and planets is typically accurate for the entire week. For up-to-date information about the night sky, go to https://nightsky.jpl.nasa.gov/planner.cfm. All times are Pacific Time unless noted.

Thursday, July 9, 2026

The Ellensburg, WA sky for the week of July 11, 2026

Saturday: Stonehenge was created on the island of Great Britain by Neolithic people. “Manhattanhenge” was created on the island of Manhattan by modern day architects and construction workers. Twice a year, at the end of May and mid-July, the setting Sun aligns perfectly with the Manhattan grid pattern. That means observers will see the Sun set at the end of the street. The first Manhattanhenge sunset of July is tonight at 8:20 p.m. Eastern time and then again tomorrow at 8:21 p.m. Eastern time. For more information about Manhattanhenge, go to https://www.amnh.org/research/hayden-planetarium/manhattanhenge.

Sunday: Since 2014, the Mars Atmosphere and Volatile Evolution (MAVEN) mission has been orbiting Mars gathering information about the Martian upper atmosphere. Studying the atmosphere and climate on other planets is crucial for helping scientists understand the Earth’s climate history and make better predictions about its future. Unfortunately, as of early July, the White House proposed 2025-26 budget cuts funding for this mission. While MAVEN may no longer be able to send valuable information back to Earth, Mars will always be visible to us. Mars is about two fists above the eastern horizon at 4:30 a.m., just above Aldebaran, a star of similar brightness. Saturn is about two fists above due southeast at this time.

Monday: Venus is one fist above the western horizon at 10:00 p.m.

Tuesday: Eleven years ago today, NASA’s New Horizons probe passed by Pluto. If the band Nirvana was still together, they’d probably rewrite one of their hit songs to be called Heart-Shaped Spot, after one of Pluto’s most distinctive features. “She eyes me like a dwarf planet when I am weak. I’ve been imaging your heart-shaped spot for weeks.” Astronomers think this heart-shaped spot is a large plain of nitrogen ice that consists of convective cells 10-30 miles across. Solid nitrogen is warmed in the interior of Pluto, becomes buoyant, and bubbles up to the surface like a lava lamp. You will find great pictures and information about what New Horizons found this past year at http://pluto.jhuapl.edu/. Pluto, itself, is one fist above the southeastern horizon at 11:00 p.m.

Hey, wait, I’ve got a new complaint. People should be more interested in astronomy. The best group to start with is children. If you are stuck at home, wondering what to do, go to the NASA Kids Club website at https://www.nasa.gov/kidsclub/. There are fun and educational activities for younger children. Older children may like my favorite NASA website - about planets outside our Solar System. I suggest first exploring the “Galaxy of Horrors!” at https://exoplanets.nasa.gov/alien-worlds/galaxy-of-horrors/.

Wednesday: GPS helps a lot of people find their way around the Earth, a planet they drive on all the time. Imagine how helpful it would be for the moon, a place that astronauts have not visited for over 50 years. The National Institute of Standards (NIST) has proposed using ultra stable lasers placed on the moon’s permanently shadowed craters. Even a little bit of heat causes the lasers to expand enough to make them too imprecise to accurately measure distances. Read more about this at https://www.space.com/astronomy/moon/lasers-in-moon-craters-could-create-a-lunar-gps-system. The moon is half a fist above the west-northwestern horizon at 9:30 p.m.

Thursday: The Southern Delta Aquarid meteor shower has a long gradual peak for the next few weeks into mid-August. Meteor showers are named after the constellation from which the meteors appear to originate. These meteors appear to come from a point in Aquarius near the star Delta Aquarii, also known as Skat. This point is about two and a half fists above the southeast horizon at 3:00 am early this morning. You can follow this point throughout the night and for the next few weeks, as it will remain a fist above Fomalhaut, the brightest star in that section of the sky. Read about the shower, at https://earthsky.org/?p=159138. As your mother might say, dress warmly and sit in a comfortable chair for maximum enjoyment. Meteors are tiny rocks that hit the Earth and burn up in the atmosphere.

Friday: Say "Cheese". 175 years ago, Vega, in the constellation Lyra the lyre, became the first star ever photographed. The photograph was taken at the Harvard Observatory using the daguerreotype process. Vega is the third brightest nighttime star we can see in Ellensburg, behind Sirius and Arcturus. Vega is nearly straight overhead at midnight.

The positional information in this column about stars and planets is typically accurate for the entire week. For up-to-date information about the night sky, go to https://nightsky.jpl.nasa.gov/planner.cfm. All times are Pacific Time unless noted.

Thursday, July 2, 2026

The Ellensburg, WA sky for the week of July 4, 2026

Saturday: Let’s learn about Capella. It is the fourth brightest star we can see in Ellensburg. It is the brightest northerly star. It is a binary star consisting of two yellow giant stars that orbit each other every 100 days. At 11:30 p.m., Capella is a half a fist held upright and at arm’s length above due north. You can also use the Big Dipper to find it. First, find the two “cap” stars on the cup of the Big Dipper, the stars on the top of the cup. Draw a line from the “cap” star closest to the handle to the cap star farthest from the handle. Then, continue that line to the next very bright star, which is Capella. Thus, you can “cap” to Capella. If you can’t “cap” tonight, don’t worry. Capella is the brightest circumpolar star meaning it is the brightest star that never goes below the horizon from our point of view in Ellensburg.

Sunday: Look straight up at midnight. The head of Draco the dragon will be looking straight down on you. The brightest star in the head is called Eltanin. If you wait for a VERY long time, Eltanin will be the brightest star in the entire night sky. Currently 154 light years away, it is moving towards Earth and will be only 28 light years away in about 1.3 million years, claiming the title as the brightest star.

Monday: Hot enough for you? Don’t blame the Earth-Sun distance. Surprisingly, the overall temperature of the Earth is slightly higher in July, when the Earth is farthest from the Sun, than in January, when it is closest. That’s because in July, the Northern Hemisphere is tilted towards the Sun. (This is the real cause of the seasons.) The Northern Hemisphere has more land than the Southern Hemisphere. Thus, in July, the large amount of Northern Hemisphere land heats up the entire Earth about two degrees Celsius warmer than in January. In January, the watery Southern Hemisphere is tilted toward the Sun. But water does not heat up as fast as land, so the Earth is a few degrees cooler. The distance between the Earth and the Sun is its greatest today, 152.1 million kilometers. This is called aphelion from the Greek prefix “apo” meaning “apart” and Helios, the Greek god of the Sun.

Tuesday: While exploring Jezero crater on Mars in 2024, NASA’s Perseverance rover discovered an interesting looking rock they named Cheyava Falls. This rock contains iron and phosphate, elements that are often associated with microbial life, so the rover did some tests on the material. Late last year, NASA reported the rock contained sedimentary mud-like material associated with peat bogs and decaying organic matter on Earth. Scientists would need to bring the material to Earth for confirmation, but this is the best evidence yet for Mars having life in the past. For more information about this finding, watch https://youtu.be/kvcfO_-p6YE. For confirmation Mars exists, look one and a half fists above the eastern horizon at 4:30 a.m. At this same time, Saturn is about a half a fist below the moon, above due southeast.

Wednesday: The bright star Regulus is less than a pinky-width to the lower left of Venus, a fist and a half above the western horizon at 9:30 p.m. Jupiter is to the lower right of Venus, just above the west-northwestern horizon at this time.

Thursday: Nebulas are diffuse clouds of gas and dust where stars form. The second brightest is the Lagoon Nebula, in the constellation Sagittarius. It is visible with the naked eye from a very dark site however it is best viewed with binoculars. At 11:30 p.m., find the teapot-shaped asterism of Sagittarius about a fist above the southern horizon. Look at the triangle-shaped spout on the right side of the teapot. Spread out your thumb and forefinger to match the height of the triangle. Then look at that same thumb-forefinger span above the triangle. The Lagoon Nebula is there. Aim your binoculars at that spot.

If you’d like to learn more about nebulas, the CWU Lydig Planetarium has free shows at 3:00 p.m. and 5:00 p.m. today. They are in Discovery Hall, room 101. Here is a Google maps link: https://maps.app.goo.gl/Nwp1e5t7qXk5bfE9. Parking on campus is free after 4:30 p.m.

Friday: About ten years ago astronomers using a radio telescope in Australia discovered the source of fleeting radio signal bursts that had been a mystery for 17 years. And they didn’t have to probe the depths of deep space. They only had to probe the depths of… the observatory kitchen. It turns out the signal came from opening the microwave door prematurely. Read more about The Microwave Emission here: http://goo.gl/Ftb04C. Sheldon Cooper used similar methods of science when he discovered a can opener instead of magnetic monopoles in the season three premiere of “The Big Bang Theory” http://goo.gl/kAEoOD.

The positional information in this column about stars and planets is typically accurate for the entire week. For up-to-date information about the night sky, go to https://nightsky.jpl.nasa.gov/planner.cfm. All times are Pacific Time unless noted.

Thursday, June 25, 2026

The Ellensburg, WA sky for the week of June 28, 2026

Saturday: Nearly 400 years ago, Galileo looked at the Pleiades star cluster through his telescope and noticed that the seven or so stars in the region visible to the naked eye became many more. There are two main types of star clusters. Open star clusters, like the Pleiades and the Beehive, are groups of a few dozen to a few thousand stars that formed from the same cloud of gas and dust within our galaxy. Stars in open star clusters are young as far as stars go. Globular clusters are groups of up to a few million stars that orbit the core of spiral galaxies such as our own Milky Way. One of the most well-known star clusters is the globular cluster in Hercules, an object that is fairly easy to find with binoculars. First find Vega, the bright bluish star six and a half fists held upright and at arm’s length above the eastern horizon at 11:00 p.m. Two fists above Vega, and close to straight overhead, is a keystone shape that represents the body of Hercules. Aim your binoculars at the upper left-hand star of the keystone, the star closest to straight overhead. The globular cluster is one third of the way to the rightmost star of the keystone. It looks like a fuzzy patch on the obtuse angle of a small obtuse triangle. If you don’t know what an obtuse angle is, you should not have told your teacher, “I’ll never need to know this math stuff you are teaching”.

Sunday: Jupiter is about a half a fist above the west-northwestern horizon at 9:45 p.m. Mercury is below it, likely too close to the horizon to be visible. They are moving towards the Sun in the sky and will soon be lost in its glare. At one and a half fists above the western horizon, Venus is still far enough from the Sun in the sky to be visible in the evening sky for a few more weeks.

Monday: The July full moon is the Buck Moon, named for the new antlers that form on the forehead of male deer this time of year.

Tuesday: Happy Asteroid Day (http://www.asteroidday.org/), the day we celebrate avoiding the destruction of the Earth by an undiscovered asteroid. There are about a million asteroids in the Solar System with the potential to strike Earth and destroy a city. Astronomers have discovered only 1% of them. Asteroid Day is an effort to educate the public and encourage policy makers to fund this important effort. King Tut may have celebrated an ancient Asteroid Day by asking his assistants to make a dagger out of a broken-off asteroid that landed on Earth. Astronomers discovered that the blade of the knife contained much more nickel than is found in terrestrial iron, an amount consistent with iron meteorites, especially with one found in the year 2000 in the Kharga region in northern Egypt. For more information about the dagger, go to http://goo.gl/BHBivd.

Wednesday: Mizar is a star in the middle of the Big Dipper handle. Don’t confuse Mizar with its rhyming brother Izar in the constellation Boötes. Izar is also a binary star with about the same apparent brightness. And both were featured in different episodes of Star Trek. Izar was featured in the Star Trek episode “Whom Gods Destroy” from the original series. It is the base of Fleet Captain Garth, a former big shot in the federation and one of Kirk’s heroes before he went insane. Garth kidnaps Kirk and Spock before eventually being outsmarted. Mizar doesn’t play as big a role in its episode. It is the star of the home world of one of the alien species in The Next Generation episode “Allegiance”. Izar is one fist above the bright star Arcturus and exactly six fists above the west-southwestern horizon at 11:00 p.m. Mizar is nearly six fists above the west-northwestern horizon.

Thursday: Being in a coma is a bad thing. Looking at the Coma Star Cluster is a good thing. The Coma Star Cluster is an open cluster of about 50 stars that takes up more space in the sky than 10 full Moons. It looks like a fuzzy patch with the naked eye. Binoculars reveal dozens of sparkling stars. A telescope actually diminishes from the spectacle because the cluster is so big and the telescope’s field of view is so small. The Coma Star Cluster is in the faint constellation Coma Berenices (ba-ron-ice’-ez) or Queen Berenice’s hair. Queen Berenice of Egypt cut off her beautiful hair as a sacrifice to the gods for the safe return of her husband Ptolemy III from battle. The Coma Star Cluster is about three fists above the western horizon at 11:00 p.m.

Friday: Mars is about one and a half fists above the east-northeastern horizon at 4:30 a.m., halfway between the Pleiades and Hyades open star clusters. But that’s not the most interesting thing about looking at Mars this morning. The planet Uranus is right above Mars in the sky this morning. Uranus is not quite bright enough to be visible to the naked eye. But it is easily visible with binoculars, right above Mars.

The positional information in this column about stars and planets is typically accurate for the entire week. For up-to-date information about the night sky, go to https://nightsky.jpl.nasa.gov/planner.cfm. All times are Pacific Time unless noted.

Thursday, June 18, 2026

The Ellensburg, WA sky for the week of June 20, 2026

Saturday: At 10:00 p.m., very bright Venus is one and a half fists held upright and at arm’s length above the western horizon. Jupiter is to the lower right of Venus, a half a fist above the horizon. Mercury is to the lower right of Jupiter, just above the west-northwestern horizon.

Sunday: At 1:25 a.m. today, the Sun reached its highest declination (the official name for sky latitude) of 23.5 degrees above the celestial equator. The celestial equator is the line that divides the northern sky from the southern sky. That makes today the first full day of summer. In Ellensburg, the Sun is about seven fists held upright and at arm’s length above the south horizon at 1:00 p.m. (noon standard time) on the first day of summer.

Contrary to widespread belief, the Sun is never straight overhead in Ellensburg or anywhere else in the 48 contiguous states. The northernmost portion of the world where the Sun can be directly overhead is 23.5 degrees north latitude. In ancient times, the Sun was in the constellation Cancer the crab on the first day of summer. Hence, 23.5 degrees north latitude has the nickname "Tropic of Cancer". Because the Earth wobbles like a spinning top, the Sun's apparent path through the sky changes slightly over time. Now, the Sun is in the constellation Taurus the Bull on the first day of summer. However, citing the high cost of revising all the science books, geographers are not changing the name of 23.5 degrees north latitude to "Tropic of Taurus". The first day of summer is often called the summer solstice. However, astronomers refer to the summer solstice as the point in the sky in which the Sun is at its highest declination above the celestial equator. Summer starts when the Sun is at the summer solstice point.

Monday: Don’t wait until July 4 to watch those wimpy firecracker shows. Find the hypergiant star Rho Cassiopeiae. Astronomers think that Rho Cassiopeiae will likely go supernova (explode) in the near future. Of course, for stars, “near future” might mean tomorrow. It might mean 20,000 years from now. Rho Cassiopeiae is in the constellation Cassiopeia the queen. At 11:00 tonight, Cassiopeia looks like the letter “W” about two and a half fists above the north-northeastern horizon. Rho Cassiopeiae is about a finger’s width to the right of the rightmost star in the “W”. Once you find it you’ll be thinking, “Big deal, I can hardly see it.” Although it is barely visible to the naked eye, it is actually very bright. It is the 20th most luminous star in the sky, a whopping 550,000 times more luminous than the Sun.

Tuesday: The bright star Spica is about a half fist to the upper right of the moon, in the south-southwestern sky at 10:00 p.m.

Wednesday: “Mom, I can’t sleep. It is too light out!” A poor excuse you say. Good astronomy skills, I say. The latest sunset of the year happens around this date. Surprisingly, the earliest sunrise and the latest sunset do not both happen on the longest day of the year, the day of the summer solstice. The earliest sunrise occurs just before the longest day and the latest sunset occurs just after the longest day. This phenomenon relates to the angle of the Sun’s path near rising and setting. In Ellensburg, that angle is about 66 degrees above the southern horizon at noon near the first day of summer. Because of the Earth’s orbit, which causes the Sun’s apparent motion, the angles are not symmetric. The asymmetry in orbital angles leads to the asymmetry in rise and set times. This year, the sun sets at about 9:01 p.m. every night the rest of this week as viewed from Ellensburg, WA. Find sunset data for your location at https://www.timeanddate.com/sun/.

Thursday: At 4:00 a.m., Mars is one fist above the east-northeastern horizon. Saturn is two and a half fists above the south-southeastern horizon at this time.

Friday: The bright star Antares is about a half fist to the left of the moon at 11:00 p.m., one and a half fists above due south. If you’d like to learn more about stars like Antares, the CWU Lydig Planetarium has free shows at 3:00 p.m. and 5:00 p.m. today. They are in Discovery Hall, room 101. Here is a Google maps link: https://maps.app.goo.gl/Nwp1e5t7qXk5bfE9. Parking on campus is free after 4:30 p.m.

The positional information in this column about stars and planets is typically accurate for the entire week. For up-to-date information about the night sky, go to https://nightsky.jpl.nasa.gov/planner.cfm. All times are Pacific Time unless noted.

Thursday, June 11, 2026

The Ellensburg, WA sky for the week of June 13, 2026

 

CWU graduation is this weekend. Your favorite graduate deserves a gift. Why not get her, him, or them a star? I don’t mean from one of those organizations that offer to “register the name of YOUR star with the U.S. Patent Office”. No company owns the right to name stars after people. Besides, the stars that those companies “name” are so dim you can’t find them. In this column, I’ll pick a constellation and representative star for each of the four colleges at CWU. Then, I’ll briefly tell the story of the constellation and relate that story to the aspect of public service CWU graduates from that college are highly qualified to engage in based on my version of sky interpretation. If different couples can have “their” song, then your favorite college graduate can have their star. If you can’t make it to campus, celebrate with your favorite CWU 2026 graduate at the Livestreamed ceremony shown here: http://www.cwu.edu/commencement/.

Saturday: College of Arts and Humanities: You are the people who interpret the world in unique ways. Then, you share those ways with others. According to Greek mythology, Orpheus charmed everyone he met when he played the lyre or harp. After his wife died tragically, he journeyed to the underworld to charm its inhabitants in an effort to win his wife back to the living world. Your service reminder: use your talent to bring joy to others. The constellation Lyra and its bright star Vega should remind you of the power of the arts. Vega is five and a half fists held upright and at arm’s length above the eastern horizon at 11:00 p.m.

Sunday: "Do I have to wake up yet? It's so early!" The next few days have the earliest sunrises for the northern part of the United States, including Ellensburg. "Wait, I thought this happened on the longest day of the year, which hasn't occurred yet." Because the Earth's orbit is not a perfect circle, the sunrise and sunset time is not symmetric. The earliest sunrise occurs before the longest day, and the latest sunset occurs after the longest day. Go to http://earthsky.org/?p=4027 to read more about this phenomenon. While you are up early, look for the planets Venus and Saturn. Venus is one fist above the eastern horizon and Saturn is two and a half fists above the east-southeastern horizon at 4:15 a.m.

Monday: College of Business. You are the future movers and shakers. The future CEOs. The future big donors to Central. Auriga represented a king of Athens who happened to be mobility impaired. Instead of sitting around waiting for others to transport him, he took the initiative to invent the four-wheeled chariot. He solved a problem for a special need. Your service reminder: address the problems of those in the most need. To remind you of that, look to the constellation Auriga. Its bright star Capella is about a half a fist above the north-northwestern horizon at 11:00 p.m.

Tuesday: Mars’ two small moons, Phobos and Deimos, are not visible in typical backyard telescopes. But they are an interesting study. The former view among astronomers was that both moons are captured asteroids. That makes sense given Mars’ proximity to the asteroid belt. But recent findings by European astronomers indicate that Phobos is very porous and made of material similar to the surface of Mars. This implies that Phobos may consist of chunks of Martian debris that was blasted off by numerous impacts and gravitationally bound together. Unfortunately, the Russian Phobos-Grunt probe launched late 2011 to collect material from Phobos crashed to Earth after malfunctioning. For more information about this recent model of Phobos’ formation, go to https://sci.esa.int/web/mars-express/-/31031-phobos. For more information about Mars, look one fist above the east-northeastern horizon at 4:15 a.m. Saturn is two fists above the east-southeastern horizon at this time.

Wednesday: “Three planets and a crescent moon line up in the western sky.” This is not the opening line of a bad joke. It is a description of the evening sky. At 10:00 p.m., the crescent moon is one and a half fists above the western horizon. A little to the lower right is the planet Venus, the brightest point of light in the sky. To the lower right of Venus is Jupiter, the second brightest point of light in the sky tonight. Continuing along that line is Mercury, a half a fist above the west-northwestern horizon.

Thursday: College of Education and Professional Studies. You are the teachers. The craftspeople. The technical experts. Boötes, the herdsman, was such a person. Boötes’ job was to guide the northern constellations to the feeding place and the watering hole. He and his dogs were especially in charge of Ursa Major and Ursa Minor, the greater and lesser bears. Your service reminder: guide others to a better place in life. Look to the constellation Boötes and its bright star Arcturus to remind you of this. Arcturus is five and a half fists above the southwestern horizon at 11:00 p.m. If you’d like to learn more about constellations, the CWU Lydig Planetarium has free shows at 3:00 p.m. and 5:00 p.m. today. They are in Discovery Hall, room 101. Here is a Google maps link: https://maps.app.goo.gl/Nwp1e5t7qXk5bfE9. Parking on campus is free after 4:30 p.m.

Friday: College of the Sciences. You are the people who will systematically study how the world works. Agriculture is an important scientific application. Each year, farmers must use the findings of science to be successful. Who better to represent the College of the Sciences than Virgo, the goddess of the harvest? Virgo looms large in the sky holding an ear of wheat in her hand. Your service reminder: study the practical aspects of the scientific world. The ear of wheat, and your service reminder, is represented by the bright star Spica. Spica is two and a half fists above the southwestern horizon at 11:00 p.m.

The positional information in this column about stars and planets is typically accurate for the entire week. For up-to-date information about the night sky, go to https://nightsky.jpl.nasa.gov/planner.cfm. All times are Pacific Time unless noted.

Thursday, June 4, 2026

The Ellensburg, WA sky for the week of June 6, 2026

Saturday: I hope that you have never been in a collision. It can be scary and dangerous. The biggest collision in our celestial neighborhood may occur in a few billion years when our Milky Way Galaxy may collide with the Andromeda Galaxy. Notice I said, “MAY occur” and “MAY collide. Up until about a year ago I would have sounded more certain. But recent simulations by astronomers have lowered the chance of a collision to about 50%. These new simulations did a better job in accounting for the effects of the smaller galaxies in the celestial neighborhood. This video shows a simulation with the new findings: https://youtu.be/o2x_31dE04s.

If you can’t stay awake for a few billion years to see the possible collision, stay up until late at night to see the Andromeda Galaxy. First find the Great Square of Pegasus. At 2:00 a.m., the left-hand corner of the square is about two fists held upright and at arm’s length above the east-northeastern horizon. Less than two fists to the left and down a little bit is another star, the same brightness as the star at the corner of the square. From that star, hop about a half a fist up to a star that is about one fourth as bright. Less than another half fist in the same direction is a fuzzy oval patch of light known as the Andromeda Galaxy. The galaxy is about two and a half fists above the northeastern horizon. The galaxy is impressive to see in binoculars. It consists of nearly a trillion stars and is 2.2 million light years away.

Sunday: The Globe at Night June campaign starts tomorrow. Globe at night is a citizen science project to quantify the impact of light pollution on our view of the night sky. Go to https://globeatnight.org/campaigns/ to learn more and participate. This is a fun way to observe the night sky and contribute to science at the same time.

Monday: Venus and Jupiter are neighbors in the sky all week but tonight they are at their closest. Look for them one and a half fists above the west-northwestern horizon at 9:45 p.m. Mercury is to the lower right of them, less than a fist above the horizon.

Tuesday: Alkaid, the end of the Big Dipper handle, is nearly straight overhead at 10:00 p.m.

Wednesday: In 1982, the British group Bow Wow Wow first sang, “I Want Candy”. In May 2019, NASA finally granted that wish by releasing images of Mars’ moon Phobos looking like candy. The thermal imaging camera on NASA’s long lived Odyssey orbiter took a series of images of the full phase of Phobos. The resulting composite, looking like a many layered jawbreakers, shows how the temperature varies throughout the small moon. This temperature distribution, in turn, can help astronomers determine what the moon is made of. For more about this yummy treat, go to https://www.jpl.nasa.gov/news/why-this-martian-full-moon-looks-like-candy. Mars is about half a fist above the east-northeastern horizon at 4:15 a.m. Saturn is nearly two fists above the east-southeastern horizon at this time, just to the lower right of the moon.

Thursday: It looks so peaceful up in the night sky. But the sky is not peaceful for Jupiter. According to a recent study by astronomers, Jupiter gets hit by a 5-20 meter diameter asteroid 10 to 65 times a year. For comparison, the object that exploded over the Russian city of Chelyabinsk in 2013 was 20 meters in diameter. Earth gets hit by a 20-meter asteroid about once every 50 years. Jupiter is one fist above the west-northwestern horizon at 10:00 p.m., right below the brighter Venus. You can see how much Venus has moved compared to Jupiter over the past three days.

Friday: Are you up at 12:52 a.m., looking due north and thinking you see a UFO coming to take you away? That's no UFO. It's the bright star Capella, a circumpolar star that never goes below the horizon as viewed from Ellensburg.

The positional information in this column about stars and planets is typically accurate for the entire week. For up-to-date information about the night sky, go to https://nightsky.jpl.nasa.gov/planner.cfm. All times are Pacific Time unless noted.

Thursday, May 28, 2026

The Ellensburg, WA sky for the week of May 30, 2026

Saturday: Two of the best, and certainly the most available, tools for viewing the night sky are your eyes. Your eyes let you see the entire sky in just a few seconds. Your eyes can read star charts, decipher astronomy apps, and spot meteors while your friend is still setting up her tripod. Your naked eyes are not as effective as gathering light. They work well when the light source is comparatively bright and the detailed features are fairly large. It’s best to practice on a special Solar System body known scientifically as the Magnificent Optical Object of Nearness. Artists such as Jan van Eyck and Leonardo da Vinci produced the first realistic naked eye depictions of the Magnificent Optical Object of Nearness. I challenge you to use your unaided eyes to observe craters on the Magnificent Optical Object of Nearness, better known as the Moon. For a guide to the most prominent craters, go to http://goo.gl/JLhraO.

Tonight’s and tomorrow night’s moon is the second full moon of the month, which is called a blue moon. That name originates from a mistranslation of a story from the 1500s.

Sunday: You know Metis and Thebe and Adrastea and Amalthea. Io and Ganymede and Callisto and Europa. But do you recall? There are 97 Jovian moons in all. Just 60 years ago, Jupiter was thought to have only 12 moons. But astronomers are red nosed with delight that the advent of supersensitive electronic cameras has caused the number of discovered moons to rapidly increase. Jupiter’s 115 moons range in size from Ganymede, the largest in the Solar System with a diameter of 5,262 kilometers, to numerous moons with diameters of only one kilometer. In the past few years, Saturn moved to first place in the moon race with 292 moons. Uranus follows Jupiter with 29. Then comes Neptune with 16, Mars with 2, and Earth with 1. Our moon is the fifth largest in the Solar System, with a diameter of 3,475 kilometers. (One kilometer is 0.62 miles.) Even dwarf planets have moons. Pluto has 5 while both Haumea and Quaoar have 2. Eris, Makemake, Orcus, and Gonggong have 1 each. Eris is an outer solar system object that was discovered in 2005 and named in September of 2006. Because astronomers thought it was larger than Pluto, people called it the tenth planet for a while. (More recent measurements show Eris to be a little smaller in diameter than Pluto.) Haumea, the newest dwarf planet with a moon, was discovered in 2004 and officially named a dwarf planet on September 17, 2008. Go to https://solarsystem.nasa.gov/moons/ for more information about Solar System moons. You’ll have to wait until tonight to see our moon and to see some of the other Solar System planets that have moons.

Monday: Jupiter, Venus, and Mercury and all low in the west-northwestern horizon at 9:45 p.m. Jupiter is nearly two fists above the horizon, to the upper left. Venus, the brightest of the three, is in the middle. Mercury, on the lower right, is about half a fist above the horizon.

Tuesday: Summer is nearly here. How do I know? Because the days are very long. Because the temperature is rising. Because the school year is ending. Also, because the Summer Triangle is fairly high in the eastern sky at 11:30 p.m. Vega, the third brightest star visible from Ellensburg, is about five fists above the eastern horizon. Deneb, at the tail of Cygnus the swan, is about three and a half fists above the east-northeast horizon. The third star in the triangle, Altair in Aquila the eagle, is nearly two fists above the eastern horizon.

If you want to put somebody off, tell them to wait until Deneb sets. At Ellensburg’s latitude of 47 degrees, Deneb is a circumpolar star meaning it never goes below the horizon.

Wednesday: At 4:15 a.m., Mars is half a fist above the east-northeastern horizon and Saturn is one and a half fists above the east-southeastern horizon.

Thursday: Antares is one and a half fists above the south-southeastern horizon at 11:45 p.m.

Friday: The bright star Capella is a half a fist above the north-northwestern horizon at 11:30 p.m. Interestingly enough, even though it is in the northern sky, it is only about two fists from the Sun. If you viewed Capella from Ketchikan, the southernmost city in Alaska, Capella would be one and a half fists above the horizon. The Sun would be a half a fist below the horizon, close enough to the horizon that there would be a constant twilight glow.

The positional information in this column about stars and planets is typically accurate for the entire week. For up-to-date information about the night sky, go to https://nightsky.jpl.nasa.gov/planner.cfm. All times are Pacific Time unless noted.

Thursday, May 21, 2026

The Ellensburg, WA sky for the week of May 23, 2026

Saturday: Cygnus the swan flies tonight. Deneb, the brightest star in the constellation, whose name means “tail” in Arabic, is two fists held upright and at arm’s length above due northeast at 10:15 p.m. Cygnus’ wings make a vertical line one half a fist to the right of Deneb. Its head, marked by the star Albireo, is two fists to the right of Deneb. While Deneb is at the tail of Cygnus, it is at the head of the line of bright stars. It is 160,000 times more luminous than the Sun, making it one of the brightest stars in the galaxy. It does not dominate our night sky because it is 2,600 light years away, one of the farthest naked eye stars. If Deneb were 25 light years away, it would shine as bright as a crescent moon. Compare that to Vega, its fellow Summer Triangle star. Vega IS 25 light years away and certainly doesn’t rival the light of the crescent Moon. Vega is about two fists to the upper right of Deneb.

Sunday: The bright red giant Antares is one fist above the south-southeastern horizon at 11:00 p.m.

Monday: Altair, the lowest star in the Summer Triangle, is one fist above due east at 11:15 p.m.

Tuesday: Three bright planets line up in the early evening sky tonight. At 9:30 p.m., Mercury is about a half a fist above the northwestern horizon. Venus is one and a half fists above the west-northwestern horizon. Jupiter is two and a half fists above the western horizon.

Wednesday: As the weather warms up, people start thinking about swimming in a nice cool body of water. A few years ago, astronomers discovered evidence of an ocean about 20 miles beneath the surface of Saturn’s moon Enceladus. NASA’s Cassini probes measured variations in how the moon’s gravity pulled on the orbiting spacecraft. These variations can be explained by a large amount of liquid water under one section of the ice because liquid water is denser than an equal volume of ice. More recently, scientists have discovered organic molecules in the geyser streaming out of cracks in the surface. Now they hypothesize that the organic molecules come from hydrothermal vents, similar to those found under Earth’s oceans, and they are investigating the creation mechanism. For more information about these, go to https://www.universetoday.com/166987/linking-organic-molecules-to-hydrothermal-vents-on-enceladus/. While you need an exceptionally large telescope to see Enceladus, you can see Saturn at 4:30 a.m., about one fist above the eastern horizon. Mars is just above the east-northeastern horizon.

Thursday: Stonehenge was created on the island of Great Britain by the Neolithic people. “Manhattanhenge” was created on the island of Manhattan by modern day architects and construction workers. Twice a year, at the end of May and mid-July, the setting Sun aligns perfectly with the Manhattan grid pattern. That means observers will see the Sun set at the end of the street. The first Manhattanhenge sunset is tonight at 8:14 p.m. Eastern time and then again tomorrow at 8:13 p.m. Eastern time. For more information about Manhattanhenge, go to https://www.amnh.org/research/hayden-planetarium/manhattanhenge.

Friday: The Beehive Cluster is about two and a half fists above the western horizon. The Beehive Cluster, described by Ptolemy as “a nebulous mass in the breast of Cancer [the crab]”, is an open star cluster of about 350 stars that is about 600 light years away.

The positional information in this column about stars and planets is typically accurate for the entire week. For up-to-date information about the night sky, go to https://nightsky.jpl.nasa.gov/planner.cfm. All times are Pacific Time unless noted.

Thursday, May 14, 2026

The Ellensburg, WA sky for the week of May 16, 2026

 Saturday: In 1979, the group Foreigner recorded the song “Head Games”. They could have been singing about the constellations Hercules and Ophiuchus when they said “head games, it’s just you and me baby, head games, I can’t take it anymore” because the heads of these two constellations have been right next to each other in the nighttime sky for all of human history. And just to make it easy for you, a star that bears an Arabic name that means “the head” represents each head. In Hercules, it's Ras Algethi (head of the kneeler); in Ophiuchus, Ras Alhague (head of the serpent charmer). At 11:00 p.m., Ras Alhague, the brighter of the two, is about three fists held upright and at arm’s length above the east-southeastern horizon. Ras Algethi is about a half a fist to the upper right of Ras Alhague.

Sunday: Are you thirsty? I'll wait while you get some water. I will NOT wait while Corvus the crow gets you some water. The Greco-Roman god Apollo made this mistake. He sent Corvus the crow to get some water in the cup known as Crater. Some figs distracted Corvus and he waited for them to ripen so he could eat them. When Corvus got back late, Apollo put Corvus and Crater in the sky with the gently tipping cup just out of the reach of the perpetually thirsty crow. Corvus is a trapezoid-shaped constellation about two fists above due south at 9:30 p.m. Crater is just to the right of Corvus.

Monday: Venus is about a thumb’s width below the moon at 10:00 p.m., one fist above the west-northwestern horizon. When a bright planet is close to the moon in the sky, it is a tempting target to be seen when the Sun is out. “WHAT?!” you say. “Can I really see a planet when the Sun is out?” The brightest planets can be seen during the day with binoculars. The key is knowing where to look. Since you can easily find the moon during the days when it is out, use the moon to find Venus. First find the moon at 7:00 p.m., four fists above due west. Then get the moon in the center of your binocular field of view. Next move your binoculars a little to the lower left of the moon so find Venus. Finally, lower your binoculars and look in the same location.

Tuesday: Today is International Museum Day. You can read more about the day here: https://icom.museum/en/international-museum-day-2/. Even better, visit a museum instead. One of my favorite astronomy locations is the Goldendale Observatory in Goldendale, WA. Plan your visit at: https://www.goldendaleobservatory.com.

Wednesday: Are you thirsty when you get up in the morning? I know you are not waiting for Corvus. That’s okay because the Big Dipper is positioned to hold water in the morning sky. Look three fists above the northwest horizon at 4:30 a.m. You’ll see three stars that make a bent handle and four stars that make a cup. This is the Big Dipper.

Thursday: Jupiter is two fists above the western horizon at 10:00 p.m.

Friday: Regulus is about a finger’s width to the upper left of the moon, four fists above the west-southwestern horizon at 10:00 p.m.

The positional information in this column about stars and planets is typically accurate for the entire week. For up-to-date information about the night sky, go to https://nightsky.jpl.nasa.gov/planner.cfm. All times are Pacific Time unless noted.

Thursday, May 7, 2026

The Ellensburg, WA sky for the week of May 9, 2026

Saturday: Today is a great day to Get Intimate… Get Intimate with the Shrub-Steppe. This annual event organized by the Kittitas Environmental Education Network includes many outdoor educational activities, with most of them taking place in the Yakima River Canyon just south of Ellensburg. There are also planetarium shows at 2:00, 3:00, and 4:00 p.m. at the CWU Lydig Planetarium on the CWU campus. Go to https://www.ycic.org/giss-and-birdfest for more information about all the events. The planetarium shows are free. The planetarium is in Discovery Hall, found here: https://maps.app.goo.gl/Nwp1e5t7qXk5bfE9 .

Sunday: So, you think your mother has issues on Mother’s Day because she has you as a child? Her issues can’t be as bad as Cassiopeia’s issues. First, she was chained to a chair because she boasted about her beauty. Second, she must revolve around the North Star night after night. Third, a sea monster nearly killed her daughter Andromeda. Look for poor Cassiopeia about one and a half fists held upright and at arm’s length above the northern horizon at 10:00 p.m. Cassiopeia looks like a stretched out “W”.

Monday: Mars is just above the east-northeastern horizon at 5:00 p.m.

Tuesday: Have you ever seen a Black Hole? So far scientists have only directly imaged two. But they have seen the effects of dozens of Black Holes. Black holes have a strong gravitational influence on anything that passes close to them, including light. Cygnus X-1, the first Black Hole candidate ever discovered, is two fists above the east-northeastern horizon at 11:00 p.m., in the middle of the neck of Cygnus the swan. NASA launched the Chandra X-ray observatory in 1999 to study black hole candidates and other high-energy events.

Wednesday: If someone gives you a ring and says, “this ring symbolizes our eternal love, just like the rings of Saturn are eternal”, don’t doubt their love. But do doubt their astronomy knowledge. According to data recently analyzed from the Cassini Mission, Saturn’s rings may be only 10 to 100 million years old. As Cassini passed between Saturn and the rings, it was able to get the best estimate yet of the mass of the rings. Saturn’s rings are made mostly of ice and are still very bright and clean. Older rings would be darkened by debris. Also, the ring particles get pulverized by collisions over time. If this relatively low mass of ring particles were older, they would have been destroyed by now. For more information about the lifespan of Saturn’s rings, go to Saturn’s rings https://www.universetoday.com/141272/saturns-rings-are-only-10-to-100-million-years-old/. Saturn and its young rings are about a half a fist above the eastern horizon at 4:45 a.m., right below the moon.

Thursday: At 9:30 p.m., Jupiter is three fists above due west. Venus is one and a half fists above the west-northwestern horizon at this time.

Friday: I am guessing that some of you don’t like the line of reasoning from Tuesday: that seeing the effects of a Black Hole is good enough to claim there are Black Holes. You have never seen the wind. But you have seen the effects of the wind. And no Ellensburg resident doubts the existence of the wind.

The positional information in this column about stars and planets is typically accurate for the entire week. For up-to-date information about the night sky, go to https://nightsky.jpl.nasa.gov/planner.cfm. All times are Pacific Time unless noted.

Thursday, April 30, 2026

The Ellensburg, WA sky for the week of May 2, 2026

Saturday: The Eta Aquarid meteor shower peaks just before dawn this Tuesday. Since this meteor shower has a fairly broad peak range, you should start looking before dawn every morning this week. The moon is in the waning gibbous phase near the peak so it will be above the horizon, obscuring the dimmer meteors. Meteor showers are named after the constellation from which the meteors appear to originate. The meteors appear to come from a point in the constellation Aquarius near the star Eta. This point is about one fist held upright and at arm’s length above the east-southeastern horizon at 4:00 a.m. The Eta Aquarid meteors slam into the Earth at about 40 miles per second, often leaving a long trail behind them. The Eta Aquarid meteors are small rocks that have broken off Halley’s Comet. For more information about the Eta Aquarids, go to http://earthsky.org/?p=158833.

Sunday: Antares is right above the moon, low on the southeastern horizon at 11:30 p.m.

Monday: Venus is one fist above the west-northwestern horizon at 9:30 p.m. Jupiter is nearly four fists above the western horizon at this time.

Tuesday: “Lately, I’ve been, I’ve been losing sleep. Dreaming about the things that we could be. But baby, I’ve been, I’ve been praying hard, said no more counting dollars. We’ll be counting 9,096 stars, yeah, we’ll be counting 9,096 stars.” Luckily, artistic judgment prevailed over scientific precision in the OneRepublic hit “Counting Stars”. According to the Yale Bright Star Catalog, there are 9,096 stars visible to the naked eye across the entire sky if you are observing from a very dark site. In the northern United States, where a part of the sky is never visible, that number drops to about 6,500. In the middle of a small city at mid-latitudes, like Ellensburg, that number drops to a few hundred. No wonder someone has been losing sleep. Learn more about the star count at http://goo.gl/nt8d80.

Wednesday: Give me an “M”. Give me a “3”. What does that spell? “M3.” “Big deal,” you say. It was a big deal to French comet hunter Charles Messier (pronounced Messy A). M3 was the 3rd comet look-alike that Messier cataloged in the late 1700s. M3 is a globular cluster, a cluster of over 100,000 stars that is 32,000 light years away. It is too dim to be seen with the naked eye but is fairly easy to find with binoculars. First find Arcturus five and a half fists above due southeast at 10:30 p.m. Move your binoculars up one binocular field of view so two stars of nearly identical brightness are in your field of view. When the top star is in the lower left part of your field of view, there should be a fuzzy patch near the center of your field of view. This is M3.

Thursday: Saturn is half a fist above the eastern horizon at 5:00 a.m.

Friday: This weekend, celebrate Mother’s Day with the big mom of the sky, Virgo. Ancient Greeks and Romans associated this portion of the sky with their own goddess of the harvest, either Demeter (Greeks) or Ceres (Roman). Demeter was the mother of Persephone and Ceres was the mother of Proserpina. According to myth, each of these daughters was abducted causing their mothers great grief. The first star in Virgo rises in the afternoon. Spica, the bright bluish star in the constellation rises at 7:00 p.m. and is three fists above the south-southeastern horizon at 10:00 p.m.

The positional information in this column about stars and planets is typically accurate for the entire week. For up-to-date information about the night sky, go to https://nightsky.jpl.nasa.gov/planner.cfm. All times are Pacific Time unless noted.

Thursday, April 23, 2026

The Ellensburg, WA sky for the week of April 25, 2026

Saturday: The bright star Regulus is about a thumb width to the upper right of the moon at 9:00 p.m. They are five and a half fists held upright and at arm’s length above due south.

Sunday: One hundred six years ago tonight, astronomers Heber Curtis and Harlow Shapley were debating the distances of some of our farthest neighbors: galaxies. Curtis argued that the universe consisted of many galaxies millions of light years away. Shapley thought that the spiral structures seen in telescopes were actually close by as a part of the Milky Way. They also had different views on the size of the Milky Way. Learn more about their debate, called the Great Debate, at https://youtu.be/0MJCqJPMpeY. Learn more about the Milky Way by watching the center of it rise over the southeastern horizon at about 1:00 a.m.

Monday: The Eta Aquarid meteor shower peaks just before dawn on May 5 and 6. Since this meteor shower has a fairly broad peak range, you should start looking before dawn every morning this week. Meteor showers are named after the constellation from which the meteors appear to originate. The meteors appear to come from a point in the constellation Aquarius near the star Eta. This point is about one fist above the east horizon at 4:00 a.m. The Eta Aquarid meteors slam into the Earth at about 40 miles per second. They often leave a long trail. The Eta Aquarid meteors are small rocks that have broken off Halley’s Comet. For more information about the Eta Aquarids, go to http://earthsky.org/?p=158833.

Tuesday: Celebrate the ending of Global Astronomy Month by reading some poems and short stories submitted by astronomy fans at https://my.astronomerswithoutborders.org/programs/astroarts/astropoetry.

Wednesday: At 9:30 p.m., Jupiter is four fists above the western horizon and Venus is one fist above the west-northwestern horizon.

Thursday: Some open star clusters are easy to find and see, such as The Pleiades and The Hyades clusters in the constellation Taurus the bull. Some are difficult to see. M35, an open star cluster in the constellation Gemini the Twins, is in the middle. It doesn’t jump out at you, but it is easy to find if you have help. M35 is about one and a half fists above the west-northwestern horizon at 9:30 p.m., just to the right of two reddish stars of similar brightness. It is a family of a few thousand stars about 3,000 light years away. Open star clusters are young for stars, this one being about 100 million years old. The cluster is best seen using binoculars or a small telescope.

Friday: Orion stands low in the southwestern sky. At 9:00 p.m., the middle of Orion’s belt is about one fist above the west-southwest horizon. And talk about belt tightening! Alnilam, the middle star in the belt, is losing mass at a rate of about 100 thousand trillion tons a day. That’s a 1 followed by 17 zeros tons per day.

The positional information in this column about stars and planets is typically accurate for the entire week. For up-to-date information about the night sky, go to https://nightsky.jpl.nasa.gov/planner.cfm. All times are Pacific Time unless noted.

Thursday, April 16, 2026

The Ellensburg, WA sky for the week of April 18, 2026

Saturday: Venus is one fist held upright and at arm’s length above the west-northwestern horizon at 9:00 p.m., just to the left of a two-day-old moon.

Sunday: The small house-shaped head of Hydra is four fists above the southwestern horizon at 10:00 p.m.

Monday: Sirius, the brightest star in the night sky, is getting lower and lower as the days go by. It is one fist above the southwestern horizon at 9:00 p.m. By mid-May, it will be lost in the glare of the setting Sun.

Tuesday: The Lyrid meteor shower peaks tonight. The meteors appear to come from a point to the right of the bright bluish star Vega in the constellation Lyra the lyre. This point is about three fists above the east-northeast horizon at midnight tonight. The best time to observe this year is between midnight and dawn. Typically, this is one of the least interesting major meteor showers of the year, with 10-20 bright, fast meteors per hour. However, it is also one of the most unpredictable. As recently as in 1982, there were 90 meteors visible during a single hour. In addition, the Lyrid meteor shower has historical interest because it was one of the first ones observed. Chinese records say “stars fell like rain” in the shower of 687 B.C. As your mother might say, dress warmly and sit in a comfortable chair for maximum enjoyment. Meteors are tiny rocks that hit the Earth and burn up in the atmosphere. For more information, go to http://earthsky.org/?p=158735.

Wednesday: Jupiter is less than a half a fist below the moon at 9:00 p.m., about five fists above the west-southwestern horizon.

Thursday: Even though Zubenelgenubi is the second brightest star in Libra, its name means Southern Claw in Arabic, an artifact of the time that it was considered part of Scorpius the scorpion. Zubenelgenubi is a visual binary, consisting of a white and yellow star that are about 230 arc minutes apart from each other in the sky. This is about the same angular distance as the diameter of a medium sized dark spot on the Moon and can be easily resolved with binoculars. In actuality, the two stars are at least 5,500 astronomical units apart from each other, about 130 times the distance between the Sun and Pluto. Libra is one and a half fists above the southeastern horizon at midnight.

Friday: As the rock group Journey once thought of singing, “Wheel in the sky keeps on turnin’. I know where the Dipper’ll be tomorrow.” Every night, the Big Dipper and Cassiopeia make a wheel in the sky that turns around the North Star in a counterclockwise direction. Every year on April 24 at 10:00 p.m., the Big Dipper is straight overhead and W-shaped Cassiopeia is low on the northern horizon. Every year on April 25 at 10:00 p.m., the Big Dipper is straight overhead and W-shaped Cassiopeia is low on the northern horizon. Every year on April 26 at 10:00 p.m., the Big Dipper is straight overhead and W-shaped Cassiopeia is low on the northern horizon. Oh, am I boring you? Of course, there are subtle charges in the position from night to night. Each northern constellation moves about one degree counterclockwise from one night to the next. But this is not going to change their position in the sky drastically over a few days. So, if you know where the Big Dipper is tonight, you DO know where it’ll be tomorrow. If you are really struggling to understand this concept, Don’t Stop Believin’ in yourself. Just keep studying Faithfully.

The positional information in this column about stars and planets is typically accurate for the entire week. For up-to-date information about the night sky, go to https://nightsky.jpl.nasa.gov/planner.cfm. All times are Pacific Time unless noted.

Thursday, April 9, 2026

The Ellensburg, WA sky for the week of April 11, 2026

Saturday: At 8:45 p.m., Venus is one fist held upright and at arm’s length above the western horizon.

Sunday: Do people think you have a magnetic personality? The star Cor Caroli understands how you feel. Cor Caroli has one of the strongest magnetic fields among main sequence stars like our Sun. This strong magnetic field is thought to produce large sunspots that cause the brightness of Cor Caroli to vary. Cor Caroli is nearly straight overhead at midnight.

Monday: Procyon, the fourteenth closest star to the Sun and the brightest star in the constellation Canis Minor, is four fists above the southwestern horizon at 9:30 p.m.

Tuesday: Did you get binoculars for the holidays? Like National Pet Day (April 11), World Hamster Day (April 12), or National Peach Cobbler Day (April 13). If so, start using them on some of the easy to find binocular targets found here: https://earthsky.org/astronomy-essentials/best-targets-for-binoculars-moon-planets-nebula-clusters/. The first item on the list, the Moon, is a smart choice because it is full this week, meaning it is out most of the night. One of my favorite binocular objects is the Hyades Open Star Cluster. It is a V-shaped set of stars found about two fists above the western horizon at 9:00 p.m. The bright star Aldebaran is in the upper left-hand part of the V, just below Aldebaran is the double star system Theta1 and Theta2 Tauri. Theta2 Tauri is a blue giant star and Theta1 Tauri is an orange giant star. Through binoculars, you should get a hint of their color. In the mythology of the Maya, the Theta Tauri pair is known as Chamukuy, meaning “small bird” in the Yucatec Maya language.

Wednesday: “The crow rises in the southeast,” said spy number one. “I’m sorry. I don’t recognize that code,” replied spy number two. Spy one exclaimed, “That’s because it’s not a code, you idiot. I’m talking about the constellation Corvus the crow.” This very bad spy movie dialogue is to remind you that Corvus had a very bad life. According to one myth, Corvus brought the god Apollo the news that his girlfriend was seeing someone else. In a classic case of punishing the messenger, Apollo turned the formerly beautifully colored crow black. The box-shaped Corvus is two fists above the south-southeastern horizon at 10:00 p.m.

Thursday: Remember the old saying: April showers bring… meteors. The Lyrid meteor shower peaks next week, with the peak of the peak occurring from Tuesday night to Wednesday morning. The meteors appear to come from a point to the right of the bright bluish star Vega in the constellation Lyra the lyre. This point is about three fists above the east-northeast horizon at midnight tonight and close to straight overhead near dawn. The best time to observe meteor showers is between midnight and dawn. The moon will have set so the sky will be dark. Typically, this is one of the least interesting major meteor showers of the year, with 10-20 bright, fast meteors per hour. However, it is also one of the most unpredictable. As recently as 1982, there were 90 meteors visible during a single hour. In addition, the Lyrid meteor shower has historical interest because it was one of the first ones observed. Chinese records say “stars fell like rain” in the shower of 687 B.C. As your mother might say, dress warm and sit in a comfortable chair for maximum enjoyment. Meteors are tiny rocks that hit the Earth and burn up in the atmosphere. For more information, go to http://earthsky.org/?p=158735.

Friday: Jupiter is five fists above the west-southwestern horizon at 9:00 p.m.

The positional information in this column about stars and planets is typically accurate for the entire week. For up-to-date information about the night sky, go to https://nightsky.jpl.nasa.gov/planner.cfm. All times are Pacific Time unless noted.

Thursday, April 2, 2026

The Ellensburg, WA sky for the week of April 4, 2026

Saturday: Because the Earth slowly wobbles like a spinning top, the vernal equinox is slowly moving into the constellation Aquarius. By the year 2597, the vernal equinox will reach the constellation Aquarius, and the “Age of Aquarius” will begin. Until then, we’ll be in “the age of Pisces”. Pisces rises with the Sun around the first day of spring.

Sunday: Astronomers are often fascinated with large objects. Planets that could hold 1000 Earths (Jupiter). Stars that would fill up the entire inner Solar System (Betelgeuse). Galaxies with 400 billion stars (Milky Way). But what about the smallest objects? Until recently, the smallest known stars were about five times the mass of Jupiter. However, in 2023, a pair of astronomers looking at the Orion Nebula think they discovered pairs of binary brown dwarf stars just a little more massive than Jupiter. If confirmed, that could necessitate a substantial change in the accepted theory of star formation. For more on the smallest star, go to https://www.science.org/content/article/astronomers-may-have-spotted-smallest-possible-stars. You can’t see these stars. But you can see the Orion Nebula two fists above the southwestern horizon at 9:00 p.m.

Monday: Antares is a half a fist to the left of the moon at 5:30 a.m., low in the southern sky.

Tuesday: The stars in the Hyades Cluster are all young, as stars are judged, formed in the same cloud of gas, and dust a few hundred million years ago. But just as children move away from home, the stars of the Hyades Cluster are slowly drifting apart. Millennia from now, future sky watchers will see these stars as random points of light in the sky and not as a family. I hope they at least call home every so often. For more information, go to https://www.skyandtelescope.com/astronomy-news/end-hyades-star-cluster/. The Hyades Cluster is two fists above due west at 9:30 p.m.

Wednesday: You probably didn’t know this, but several British New Wave bands were really into astronomy. Take the band “Dead or Alive” (please). The original lyrics to their song “You Spin Me Round (Like a Record)" were actually: “You spin me right round, baby, right round, like the Whirlpool Galaxy, right round, round, round.” (Well, that’s what I thought they were.) The Whirlpool Galaxy was the first galaxy observed to have a spiral shape. Since then, astronomers have discovered that many galaxies, including our own Milky Way Galaxy, have a spiral shape. Go to https://esahubble.org/images/heic0506a/ for more information about the Whirlpool Galaxy. Go to your small telescope to find the Whirlpool Galaxy in the night sky. It is in the constellation Canes Venatici, the hunting dogs. At 10:00 p.m., find Alkaid, the end star of the Big Dipper handle, five and a half fists above the east-northeastern horizon. The Whirlpool Galaxy is two fingers to the upper right of Alkaid.

Thursday: Venus is a half a fist above the west-northwestern horizon and Jupiter is five and a half fists above the southwestern horizon at 9:00 p.m.

Friday: The Lyrid meteor shower peaks later this month. But there will be increased meteor activity in the vicinity of the constellation Lyra until then. The meteors appear to come from a point to the right of the bright bluish star Vega in the constellation Lyra the lyre. This point is about one and a half fists above due northeast at 10:00 p.m. and close to straight overhead near dawn. Go to https://earthsky.org/?p=158735 for more information.

The positional information in this column about stars and planets is typically accurate for the entire week. For up-to-date information about the night sky, go to https://nightsky.jpl.nasa.gov/planner.cfm. All times are Pacific Time unless noted.

Thursday, March 19, 2026

The Ellensburg, WA sky for the week of March 21, 2026

Saturday: Signs of spring: flower buds, leaves on the trees, beetle larvae, and the Spring Triangle. The bright stars Regulus, Arcturus, and Spica rise as evening starts. By 10:00 p.m., Regulus is five fists held upright and at arm’s length above the south-southeast horizon, Arcturus is two fists above the eastern horizon, and Spica is half a fist above the east-southeast horizon. For more on the Spring Triangle, go to https://www.livescience.com/space/vernal-equinox-how-to-see-spring-begin-just-by-looking-at-the-stars.

Sunday: The open star cluster called The Pleiades is less than a half a fist to the upper left of the moon at 9:00 p.m. They are about three fists above the western horizon at this time.

Monday: Venus is a little less than a fist above due west at 8:00 p.m.

Tuesday: The brightest star in the head of Draco the dragon is called Eltanin, based on the Arabic At-Tinnin or “great serpent”. It is currently about 150 light years away. Eltanin is moving towards our Solar System. In 1.5 million years, it will be only 28 light years away and the brightest star in the night sky, nearly as bright as Sirius is currently. Eltanin is three fists above due northeast at midnight.

Wednesday: Jupiter is about a half a fist to the left of the moon throughout the night. They are six fists above the southwestern horizon at 9:00 p.m.

Thursday: The Milky Way is pretty easy to spot in the early spring sky. Just look up. Everything you see in the sky, including that bird that just startled you, is in the Milky Way. But even the path of densely packed stars in the plane of our galaxy that looks like a river of milk is easy to find. Face due west at 9:00 p.m. in a fairly open area and look to your left. The fuzzy Milky Way path starts due south, moves upward past the bright star Sirius, under the bright planet Jupiter, towards the bright star Capella, through W-shaped Cassiopeia and down to due north on your right where the bright star Deneb sits just above the horizon.

Friday: The open star cluster called The Beehive Cluster is right below the moon throughout the night. They are six fists above due south at 9:30 p.m.

The positional information in this column about stars and planets is typically accurate for the entire week. For up-to-date information about the night sky, go to https://nightsky.jpl.nasa.gov/planner.cfm. All times are Pacific Time unless noted.

Thursday, March 12, 2026

The Ellensburg, WA sky for the week of March 14, 2026

Saturday: Venus is a half a fist held upright and at arm’s length above due west at 8:00 p.m.

Sunday: If you want to put somebody off, tell her or him to wait until Deneb sets. At Ellensburg’s latitude of 47 degrees, Deneb is a circumpolar star meaning it never goes below the horizon. At 10:15 p.m., it will be as close as it gets to the horizon, about two degrees above due north. Watch it reach this due north position about 4 minutes earlier each night.

Monday: Many artists have sung the song “Blue Moon”. But few have sung the song “Blue Planet”. It goes, in part “Blue Planet, you saw me standing with 28 others. Rolling around like a barrel. Without close sisters or brothers.” It’s about the planet Uranus, which orbits the Sun in a rolling motion and has 28 moons. 25 of Uranus’ moons are named after characters in works by William Shakespeare and three are from the poem “The Rape of the Lock” by Alexander Pope. Uranus is two and a half fists above due west at 10:00 p.m. It is half a fist below the Pleiades open star cluster.

Tuesday: Ask someone which day in March has the same duration day and night. Go ahead, ask someone. Why are you still reading this? I can wait. If that person said the first day of spring, they are wrong. Today, a few days before the first day of spring, is the date in which day and night are closest in duration in central Washington. Go to https://www.timeanddate.com/sun/ to find the day for your city. It will be close to today for all USA cities.

There are two main reasons for this. First, the atmosphere acts like a lens, bending light from the Sun above the horizon when the Sun is already below the horizon. This makes the Sun appear to rise before it actually rises and appear to set after it actually sets. Second, spring starts when the center of the Sun passes through the point called the vernal equinox. But the Sun is not a point. The upper edge of the Sun rises about a minute before the center of the Sun, and the lower edge sets a minute after the center of the Sun. Thus, even if we didn’t have an atmosphere that bends the sunlight, daytime on the first day of spring would still be longer than 12 hours.

Wednesday: Jupiter is six and a half fists above the south-southwestern horizon at 9:00 p.m.

Thursday: If you know exactly where to look in the sky, you can see a few bright planets when the Sun is out. The Solar and Heliospheric Observatory, or SOHO, is always watching the sky when the Sun is out… because it is always watching the Sun! Most of the SOHO images are filtered images of the Sun’s photosphere, the top of the visible layer. But two images, LASCO C2 and C3, place a mask over the Sun to observe the Sun’s corona as well as solar system objects that pass near the Sun, including comets. For more about using SOHO to observe comets, go to https://www.youtube.com/watch?v=K8yUa8_EAUc.

Friday: Look up in the sky. It’s a plane. It’s a bird. No, it’s the vernal equinox. The vernal equinox!? Spring starts at 7:45 a.m. Pacific Daylight Time. The first day of spring is often called the vernal equinox. This label for the day is misleading. The vernal equinox is actually the point in the sky where the Sun’s apparent path with respect to the background stars (called the ecliptic) crosses the line that divides the stars into northern and southern celestial hemispheres (called the celestial equator). This point is in the constellation Pisces the fishes. At the vernal equinox, the Sun is moving from the southern region of background stars to the northern region.

The positional information in this column about stars and planets is typically accurate for the entire week. For up-to-date information about the night sky, go to https://nightsky.jpl.nasa.gov/planner.cfm. All times are Pacific Time unless noted.

Thursday, March 5, 2026

The Ellensburg, WA sky for the week of March 7, 2026

Saturday: Don't forget to set your clocks ahead one hour tonight for the annual ritual called daylight savings. Daylight savings originated in the United States during World War I to save energy for the war effort. But a recent study by two economists shows that switching to daylight savings time may actually lead to higher utility bills. When the economists compared the previous few years of energy bills in the section of Indiana that just started observing daylight savings, they discovered that switching to daylight savings cost Indiana utility customers $8.6 million in electricity. In an even more important consequence of daylight savings, Stanley Coren of the University of British Columbia discovered a 7% jump in traffic accidents on the Monday after we "spring ahead". Blame it on the lost hour of sleep. And, sky watchers will lose even more sleep because the sky stays light for an additional hour.

There are three planets clustered in the sky a half a fist above the western horizon at 6:30 p.m. Venus is by far the brightest of the three. Saturn is to the left of Venus, about one degree away. Most people won’t be able to squeeze their pinky between them. Neptune is the same distance below Venus, but you’ll need large binoculars or a small telescope to see it.

Sunday: Jupiter is six fists above the southwestern horizon at 9:00 p.m.

Monday: “Oooo, they’re little runaways. Orion’s stars moved fast. Tried to make a getaway. Ooo-oo, they’re little runaways,” sang Bon Jovi in his astronomical hit “Runaway. At least that’s what I hear when I listen to the song. After all, it fits the recently calculated trajectory of AE Aurigae, Mu Columbae, and 53 Arietis. Extrapolating the actual motion of these three stars back in time, they were all in the location of the star-forming region called the Orion Nebula a few million years ago. What kicked these stars out? Not paying rent? Excessive partying? No, it was simply gravitational interactions with near-by stars. Find out more about the eviction at http://goo.gl/UeLwKQ. The Orion Nebula is visible with the naked eye from a very dark site, about two fists above the southwestern horizon at 10:00 p.m.

Tuesday: The moon is about one and a half fists above due south at 6:30 a.m. The bright star Arcturus is about a pinky width above it.

Wednesday: “The crow rises in the southeast,” said spy number one. “I’m sorry. I don’t recognize that code,” replied spy number two. Spy one exclaimed, “That’s because it’s not a code, you idiot. I’m talking about the constellation Corvus the crow.” This unbelievably bad spy movie dialogue is to remind you that Corvus had an unbelievably bad life. According to one myth, Corvus brought the god Apollo the news that his girlfriend was seeing someone else. In a classic case of punishing the messenger, Apollo turned the formerly beautifully colored crow black. The box-shaped Corvus is one fist above the southeastern horizon at 11:00 p.m.

Thursday: While you were looking through your underwear drawer for clean socks, some citizen scientists were looking through sky maps obtained by robotic telescopes to find brown dwarfs. The project, called Backyard Worlds: Cool Neighbors, allows anyone with a computer and internet connection to search through thousands of images to find these strange objects that are midway between being classified as large planets and small stars. Some brown dwarfs can have surface temperatures of thousands of degrees Celsius. The recently discovered ones are cooler than the boiling point of water and may even have clouds of water vapor! Read more about the discovery and how you can participate in this project at https://noirlab.edu/public/blog/newly-launched-backyard-worlds/.

Friday: If you are lucky, you may be able to see Mercury just above the eastern horizon at 6:50 a.m.

The positional information in this column about stars and planets is typically accurate for the entire week. For up-to-date information about the night sky, go to https://nightsky.jpl.nasa.gov/planner.cfm. All times are Pacific Time unless noted.