Tuesday, July 22, 2014

The Ellensburg sky for the week of 7/26/14

Saturday: If you want to show your loved ones a celestial sign that they should hang up their clothes, show them Brocchi's Cluster, commonly known as the Coat Hanger cluster because of its resemblance to an upside down coat hanger. The cluster is six fists held upright and at arm’s length above the southeast horizon at 10:30 p.m., midway between Altair and Vega, the two brightest stars in the Summer Triangle. You'll need binoculars to make out the shape. First find Altair four fists above the southeast horizon. Slowly move your binoculars up toward Vega. You will run into the coat hanger along the way. And while you are at it, put away your shoes.

Sunday: Altair, at one corner of the Summer Triangle, is four fists above the southeast horizon at 11 p.m. Altair is one of the closest bright stars, so close that fictional astronauts visited a planet orbiting Altair in the 1956 movie “Forbidden Planet”.

Monday: At 9:30 p.m., Mars is one and a half fists above due southwest. Saturn is a fist and a half to the upper left of Mars and more than two fists above the south-southwest horizon.

Tuesday: The Southern Delta Aquarid meteor shower peaks tonight and early tomorrow morning with a higher than normal concentration of meteors being visible throughout the next week. Meteor showers are named after the constellation from which the meteors appear to originate. “Hi de hi de hi de hi”, these meteors appear to come from a point in Aquarius near the star Delta Aquarii, also known as Skat. “Ho de ho de ho de ho”, this point is about one and a half fists above the southeast horizon at 1 am tomorrow morning. (The well-known scat singer Cab Calloway must have had an interest in this star.) You can follow this point throughout the night, as it will remain a fist above Fomalhaut, the brightest star in that section of the sky. The best time to view the shower is after midnight between moonset and dawn. The next two weeks will bring excellent meteor watching conditions because the moon will be below the horizon during the prime viewing times after midnight. For more information about this year’s shower, go to http://goo.gl/Uoxvda. As you 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.

Wednesday: Do you want an easy way to find due north? A compass points to magnetic north, which is a few degrees off of true geographic north. Well, tonight’s your night. Capella, the brightest star in the constellation Auriga the Charioteer, is due north at exactly 10:03 p.m. It looks like a bright light on a pole on the north ridge because is only about one degree above the horizon.

Thursday: Venus is one fist above the east-northeast horizon at 5 a.m.

Friday: In Scotland, August 1 was known as Lammas, the festival of the first wheat harvest of the year. You can remember this by looking at Spica, named after the Latin word for “ear of wheat”, one fist held upright and at arm’s length above the west-southwest horizon at 9:30 p.m. August 1 is known as a cross-quarter day, a day approximately half way between an equinox and a solstice.


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.

Thursday, July 17, 2014

The Ellensburg sky for the week of 7/19/14

Saturday: Do you ever wonder who comes up with the official names for objects in the Solar System? Names such as Sedna, Haumea, and Makemake? The International Astronomical Union (IAU) does. What about all of those planets that have been discovered orbiting other stars? The IAU will name those as well… but with your help. They are starting a contest at http://nameexoworlds.org/ in which individuals and clubs can propose names for a limited number of objects. The number of objects on the list depends on how many individuals and clubs are interested. So go to http://nameexoworlds.org/#planets, look at the big list of planets, and start to feel at inspiration.

Sunday: Take a two and a half hour walk. Too long, you say? Forty-five 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. Michael Collins orbited the Moon in the spacecraft the astronauts would use to return to Earth.

Monday: Mars is the reddish object exactly two fists held upright and at arm’s length above the southwest horizon and Saturn is the orangeish object two fists to the left of it. Speaking of –ish, the star Spica is the bluish less than a half a fist to the lower right of Mars.

Tuesday: Hot enough for you? If not, astronomers using NASA’s Spitzer Space telescope think they have discovered a molten planet orbiting a star almost right next door on an astronomical scale – only 33 light years away. This planet is about two-thirds the diameter of Earth and is VERY close to its parent star – about 2% of the Earth-Sun distance. The star, GJ 436, is a dim red dwarf star. For more information about this discovery, read the NASA press release at http://goo.gl/9nY8w.

Wednesday: The Southern Delta Aquarid meteor shower peaks for the next few weeks with the greatest concentration of meteors being visible next week. 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 one and a half fists held upright and at arm’s length above the southeast horizon at 1 am tonight. You can follow this point throughout the night, as it will remain a fist above Fomalhaut, the brightest star in that section of the sky. The best time to view the shower is after midnight between moonset and dawn. The next two weeks will bring excellent meteor watching conditions because the moon will be below the horizon during the prime viewing times after midnight. For more information about this year’s shower, go to http://goo.gl/Uoxvda. As you 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.

Thursday: Venus, Mercury, and the waning crescent moon are crowded low in the northeastern sky this morning. At 4:30 a.m., the moon is a half a fist above the east-northeast horizon and Venus is a half a fist to the upper left of the moon. Mercury will be a challenge to find, one fist to the lower left of Venus.

Friday: Now that Pluto’s two newest moons have been named Kerberos and Styx, the dwarf planet system is probably going to release a Styx tribute album featuring these songs. Blue Color Plan(et): “I’ll take those long nights, impossible cold, keeping my eye for the spacecraft. If it takes nine years to show me in the cam. Well, I’m gonna be a blue color plan(et)”. Too Much Time on my Hands: “Is it any wonder I take two-fifty years? Is it any wonder I’m made of hail? Is it any wonder I’ve got too much time on my hands”. The New Horizons spacecraft, on a nine year journey to reach Pluto in 2015, even has a contribution to the album: “Babe, I’m leaving, I must be on my way. Pluto is drawing near.” You can’t see Pluto with binoculars or even a small telescope. But you can read about the New Horizons spacecraft, which is less than a year out from Pluto. Go to http://www.nasa.gov/mission_pages/newhorizons/main/ 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.

Wednesday, July 9, 2014

The Ellensburg sky for the week of 7/12/14

Saturday: Today’s full moon isn’t a normal full moon. It’s a supermoon. Since the moon’s orbit around the Earth is elliptical, it is not always the same distance away from the Earth. When it is closer to the Earth, the moon looks larger than when it is farther away. One popular definition of a supermoon is a new or full which occurs when the moon is at or near its closest approach to the Earth for a given orbit. Also a supermoon has an alter ego that people don’t recognize despite being the same size, having the same voice, and never being in the same place at the same time as its super hero version. Read more about the supermoon and the radioactive spider that bit it at http://goo.gl/NQaWDl.

Sunday: Would you like to take the small finger test? First, find Mars and Spica at 10 p.m., two fists held upright and at arm’s length above the southwest horizon. Mars is the redder and brighter of the two. If you can fit your finger between Mars and Spica, you pass the test. They’ll be moving apart over the next few nights so keep taking the test until you pass.

Monday: Mercury is near Venus in the morning sky for the next few days. Look for Mercury to move toward Venus until Wednesday morning when they’ll be about a half a fist apart, low in the east-northeast sky at 4:30 a.m.

Tuesday: 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 west horizon at 11:00 p.m.

Wednesday: The long summer days remind us to take some time to safely observe the Sun. The best way to do that is to go to http://sdo.gsfc.nasa.gov/ and watch the great images and videos that come from the Solar Dynamics Observer, or SDO for short. We are just moving away from a sunspot maximum so the Sun has been very active lately. So what, you say? Sunspots and associated phenomena greatly influence the strength of solar flares. The strongest flares can affect satellites orbiting the Earth and even electronics on the Earth’s surface.

Thursday: Say "Cheese". 164 years ago today, Vega, in the constellation Lyra the lyre, became the first star ever photographed. The photograph was done 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 11:00 tonight.

Friday: Saturn is about two and a half fists above the south-southwest horizon at 10 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.

Friday, July 4, 2014

The Ellensburg sky for the week of 7/5/14

Saturday: At 10 p.m., the bright star Regulus is a little less than one fist held upright and at arm’s length above the west horizon. But, who is this Regulus? He has many potential identities. The most interesting from a pop culture standpoint is Regulus Black, the brother of Sirius Black who is Harry Potter’s godfather. Regulus Black was a former follower of Voldemort, the bad guy of the Harry Potter series. However, Regulus tried to dissociate himself from Voldemort and was killed. He would be in the pile of forgotten Harry Potter characters except that he is so interesting. Also, in the sixth book, Harry found an important note written by someone known only by the initials R.A.B. Hmmm. R.A.B. Regulus A. Black perhaps? Summer is a great time to read the books. Just seeing the movies is not good enough.

Sunday: But what does the “A” stand for? Anthony? Abercrombie? Alfonzo? Not astronomical enough. It stands for Arcturus, the second brightest star visible in the nighttime sky in Washington and at Hogwarts. Arcturus is five fists above the southwest horizon at 10 p.m. The bright star Spica and Mars are halfway between Arcturus and the southwest horizon and about a fist from each other. Mars is the brighter object on the upper right within the pair. Saturn is in the neighborhood, about the same distance to the left of the moon as Spica and Mars are to the right.

Monday: Bellatrix Lestrange is Sirius Black’s cousin. But, far from being kissing cousins. They are killing cousins. Bellatrix kills Sirius in a fight at the Ministry of Magic. Bellatrix the star is the third brightest star in the constellation Orion the hunter. She’s hiding in the glow of the Sun right now. We’ll look for her next month.

Tuesday: Of course, Bellatrix is in cahoots with “he who must not be named”. Now, that’s a poor sentence, using an obscure synonym for “conspiring” and a non-specific reference. I must be under the curse “writicus dreadfulium”. Clearly this is the work of Tom Riddle, whose mother is named Merope Gaunt. Merope is a star in the Pleiades, an open star cluster about two fists above the east-northeast horizon at 4 a.m.

Wednesday: Draco Malfoy, Harry Potter’s young nemesis, is related to Sirius Black. Draco’s mother, Narcissa Black (Sirius’ cousin), helped develop a plan to trap Harry at the Ministry of Magic in the fifth book. Draco’s namesake, the constellation Draco the dragon is one of the largest constellations in the sky, winding around the North Star. Draco’s head is a four-sided figure nearly straight overhead at 11 p.m.

Thursday: Fred and George Weasley are the best-known twins in the Harry Potter universe. Venus is sometimes called Earth’s twin. After all, both have a surface temperature of about 860 degrees Fahrenheit, both have thick clouds of sulfur dioxide, both have a chest crushing atmospheric pressure, both have…. Wait. Earth doesn’t have any of those. How can they be “twins”? Venus is called Earth’s twin because they have about the same mass, radius, gravitational pull, and are similar distances to the Sun. Venus is a fist above the east-northeast horizon at 4:30 a.m. If you have the observational skills of a wizard (or a pair of binoculars), you may be able to spot Mercury a half a fist to the lower left of Venus. If Venus is in the upper right hand portion of your binocular field of view, Mercury will be in the lower left portion.

Friday: Not every woman in the Black family is evil. Let’s focus on the good. Andromeda Black, Bellatrix’s sister, is a good witch and the mother of Tonks, a young witch from the last few Harry Potter books. (If these Harry Potter references are confusing, talk to an adolescent about them.) Andromeda the constellation is an interesting one. It contains the Andromeda galaxy, the most distant object visible with the naked eye from a dark site. To locate the Andromeda Galaxy, first find the Great Square of Pegasus. At 11:00 p.m., the left hand corner of the square is about one and a half fists above the east-northeast 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 impressive to see in binoculars. It consists of about 400 billion stars and is 2.2 million 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.

Wednesday, June 25, 2014

The Ellensburg sky for the week of 6/28/14

Saturday: Tonight’s late rising moon is in the last quarter phase. Don’t wait up for it if you are tired because it doesn’t rise until 1 a.m. However, if you chose to wait, 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 chose to wait a VERY long time, Eltanin will be the brightest star in the 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 brightest star.

Sunday: Mars is two and a half fists above the southwest horizon and Saturn is three fists above the south horizon at 10 p.m.

Monday: Venus is one fist above the east-northeast horizon at 4:30 a.m.

Tuesday: Last week, I wrote about Mizar. This week, I need to warn you not to confuse Mizar with its rhyming brother Izar in the constellation Bootes. 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 out smarted. 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 seven fists above the south horizon at 10 p.m. Mizar is seven fists above the northwest horizon at this time.

Wednesday: Regulus is one fist above the west horizon at 10 p.m.

Thursday: 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 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.

Friday: Tonight, while you are looking at an explosion of fireworks, the NASA spacecraft Kepler may be looking at an “explosion” of exoplanets. So far, Kepler has found 974 planets whose presence has been confirmed by other means and evidence of 4,254 planet candidates. Something is called a planet candidate when the light from a star being observed by Kepler dims in a systematic way. Astronomers still need to compare the pattern of dimming with the potential pattern of star wobble caused by being tugged on by one or more planets before they can say for certain that they have actually found planets orbiting these stars. But if even half of these stars show the characteristic wobble, it will more than double the number of planets known to orbit other stars, also known as exoplanets. And this is only the beginning. The Kepler spacecraft is monitoring the brightness of over 156,000 stars in the constellations Cygnus the swan and Lyra the lyre. This region is midway between the bright stars Deneb and Vega. It is about the size of your hand held at arm’s length and is about six fists held upright and at arm’s length above due east at 11 p.m. For more information about the Kepler mission, go to http://kepler.nasa.gov/.


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.

Wednesday, June 18, 2014

The Ellensburg sky for the week of 6/21/14

Saturday: Today is the first day of summer, the day that the Sun reaches 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. 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). Contrary to popular 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 of 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 point above the celestial equator. Thus, summer starts when the Sun is at the summer solstice point. This year, that happens at 3:50 a.m.

Sunday: Look for the planet parade in the evening sky tonight. At 9:30 p.m., Jupiter is a half a fist above the west-northwest horizon. Mars is three fists above the southwest horizon, and Saturn is three fists above the south horizon.

Monday: This morning, the seven sisters hang out with their gal pal Venus. At 4 a.m., the open star cluster called the Pleiades, or Seven Sisters, is about a half a fist to the upper left of the bright planet Venus low in the east-northeastern sky.

Tuesday: While you may have had trouble finding Venus’s partners in yesterday’s early morning sky, you have no excuse this morning. At 4 a.m. THIS morning, Venus is less than a half a fist to the upper left of the waning crescent moon.

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 late this week. 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. (The earliest sunrise happens this weekend.) This phenomenon relates to the angle of the Sun’s path near rising and setting. In Ellensburg, that angle is about 66 degrees 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 asymmetries in orbital angles leads to the asymmetry in rise and set times. By the way, picking a specific night to give you the “can’t sleep because it is too light out” line may just be an excuse because the sunset times change by only a few seconds each day in June. This year, the sun sets between 9:01 and 9:02 p.m. between June 21 and July 3.

Thursday: Don’t wait until the 4th of July to go to 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 today. 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 three fists held upright and at arm’s length above the northeast 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.

Friday: Mizar is a well-known binary star in the constellation Ursa Major. You can find it at the bend in the Big Dipper handle, nearly straight overhead at 10 p.m. tonight. 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 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 by 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.


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.

Thursday, June 12, 2014

The Ellensburg sky for the week of 6/14/14

Have you bought your favorite college or high school graduate a graduation gift yet? Why not get her or him a star? I don’t mean from one of those organizations that offers 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 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 a university. Then, I’ll briefly tell the story of the constellation and relate that story to the aspect of public service graduates from that college are uniquely qualified to engage in based on my version of sky interpretation. A couple can have “their” song so your favorite graduate can have her or his star.

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 east horizon at 11 p.m.

Sunday: On this Father’s Day, do you have a dad so great that you wish you could write his name in galaxies? Now you can. UK astronomer Steven Bamford has developed a computer program that finds images of galaxies that resemble different letters. Just enter the words here http://mygalaxies.co.uk/ and the program spells it out in galaxies. Here’s the new Daily Record title page http://mygalaxies.co.uk/jh2m7m/.

Monday: Venus is one fist above the east horizon at 4:30 a.m.

Tuesday: 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-northwest horizon at 11 p.m.

Wednesday: College of Education and Professional Studies. You are the teachers. The craftspeople. The facilitators of learning in a diverse world. Bootes, the herdsman, was such a person. Bootes’ 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 Bootes and its bright star Arcturus to remind you of this. Arcturus is five and a half fists above the southwest horizon at 11 p.m.

Thursday: 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 southwest horizon at 11 p.m. Tonight, you’ve got a warrior’s spirit, as well, because the planet Mars, which represents the Roman god of war, is one fist to the right of Spica.

Friday: Jupiter is one fist above the west-northwest horizon at 9:30 p.m. Say “good bye” because by the beginning of July, Jupiter will be lost in the glare of 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.