Friday, November 29, 2013

The Ellensburg sky for the week of 11/30/13

Saturday: “Hey baby! What’s your sign?”
“Ophiuchus, of course”
The Sun is in the same part of the sky as the stars of Ophiuchus from about November 29 to December 17. This is what astrologers mean when they say the Sun is “in” a constellation. Thus, if you were born between these dates, you should be an Ophiuchus. The fact that the horoscopes never list Ophiuchus is a major flaw of astrology. Astrology says that some of our characteristics are based on the location of the Sun at our birth. How can astrologers leave out three weeks from their system? That is like a scientist saying she can explain the results of her experiment every month of the year except early December. Ophiuchus was a mythical healer who was a forerunner to Hippocrates. According to myth, he could raise people from the dead. Maybe that is why he is ignored by astrology. Raising people from the dead is much less impressive than giving spot-on advice such as “Today is a good day to watch your finances.”
The bright stars of Ophiuchus rise just before the Sun. Rasalhague (pronounced Ras’-al-hay’-gwee), the brightest star, is about a half a fist held upright and at arm’s length above the east-northeast horizon at 6:30 a.m.

Sunday: How would you like a moon sandwich for breakfast? This morning’s waning crescent moon is sandwiched between two planets low in the southeastern sky at 6:45 a.m. Saturn is a half a fist to the upper right of the moon and Mercury is less than a half a fist to the lower left of the moon.

Monday: Jupiter is two fists above the east horizon at 9 p.m.

Tuesday: Have you been shopping all weekend? Do you need an evening sky break? You deserve a big reward so make it a double. A Double Cluster, that is. The Double Cluster, also known as h and Chi Persei, consists of two young open star clusters in the constellation Perseus. Of course, young is a relative term as these clusters are about 13 million years old. Each cluster is spread out over an area about the same size as the full moon. To the naked eye, the Double Cluster shines with a steady, fuzzy glow. Binoculars resolve dozens of individual stars in the clusters. The Double Cluster is six fists above the northeast horizon at 6 p.m., about a fist below the sideways “W” of Cassiopeia and three fists above the bright star Capella.

Wednesday: For the next two evenings, the bright planet Venus will be near the moon. Tonight it is about a fist and a half to the left of the moon. Tomorrow night, it is less than a fist below the moon.

Thursday: Mars is four and a half fists above the south-southeast horizon at 6:30 a.m. If you are more of a night owl, you can look for it a half a fist above the east horizon at 1:30 a.m.

Friday: Is that favorite astronomy-loving relative of yours asking for a telescope this Christmas? Well, she’s your favorite so get her what she wants with cost being no object. But if that so-so relative of yours would like a telescope, look no further than this Sky and Telescope article about low cost telescopes http://goo.gl/40zd6. The authors review and recommend three telescopes for under $100 at the time of publication. If your hated acquaintance wants an astronomy gift, show them a copy this column. After such a dud “gift”, you’ll never hear from them again. And that may be the best gift of all.


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, November 21, 2013

The Ellensburg sky for the week of 11/23/13

Saturday: The Nature of Night event takes place from 10 a.m. to 3 p.m. in the Science Building on the CWU campus. There will be planetarium shows, fun nighttime projects, telescopes, animals, cookies and much more. Have you ever wanted to meet an owl? You can at this event. The event is free. You could go to http://www.cwu.edu/cesme/nature-night for more information. But why go to a computer. Instead, go directly to the Science Building, I-8 on the map found at http://www.cwu.edu/newmap.html. The Center for Excellence in Science and Mathematics Education gets help from various community organizations to put on this event.

Sunday: Are you disappointed because you are not going anywhere for Thanksgiving? Why not take a (virtual) trip to outer space using Google’s new visualization tool called 100,000 Stars. It shows the stars in our neighborhood in a very good simulation of 3-D. The Sun is initially at the center. If you zoom in, you can click on neighboring stars and learn more about them. For more information and a link to the tool, go to http://goo.gl/hg6Oc.

Monday: Jupiter is one and a half fists held upright and at arm’s length above the east-northeast horizon at 9 p.m.

Tuesday: The moon has some bright neighbors this morning at 6 a.m. Mars is a little more than a fist to the left of the moon. And Regulus is a little more than a fist to the upper right of the moon.

Wednesday: Are you thankful that you live in a solar system with multiple planets? You should be. A giant planet like Jupiter cleans up planetary debris that could have collided with Earth and hindered the formation of complex life. Any inhabitants of the planets orbiting Upsilon Andromedae are thankful for this, as well. Upsilon Andromedae, a star in the constellation Andromeda, was the first Sun-like star discovered to have multiple planets orbiting it. So far, all of its planets are giant planets like Jupiter. But, the system is likely to also contain smaller planets. The dim star, but certainly not its planets, is barely visible straight overhead at 9 p.m.

Thursday: Some of us have a lot to be thankful for on Thanksgiving. But, probably not as much as Andromeda had to be thankful for. According to Greek mythology, the beautiful princess Andromeda was chained to a rock next to the ocean. Cetus the sea monster was about to devour her in order to punish her family. Her mother Queen Cassiopeia and her father King Cepheus didn’t know what to do. It seemed that all was lost. But, along came Andromeda’s boyfriend, the great warrior Perseus. Even though Perseus’ standing as the son of King Zeus and the slayer of Medusa was probably enough to win Andromeda under normal circumstances, Andromeda’s impending death-by-sea-monster was not a normal circumstance. So, Perseus drove his sword into the sea monster’s neck and killed it. This was the first time in recorded history that a set of parents actually welcomed an uninvited Thanksgiving visit from the boyfriend. Perseus is about five fists above the east-northeast horizon and Andromeda is about seven fists above the east horizon at 7 p.m.

Friday: Spica is about a finger’s width to the lower left of the moon at 6 a.m. People in some parts of Alaska will see the moon occult, or block, Spica.


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, November 14, 2013

The Ellensburg sky for the week of 11/16/13

Saturday: The Leonid meteor shower peaks tonight and tomorrow morning. These meteors appear to come from a point in the constellation Leo the lion. This point is about one fist held upright and at arm’s length above the east-northeast horizon at midnight tonight. You can follow this point throughout the night and into the morning, as it will remain about one fist above the bright star Regulus. The Leonid meteors are particles from the tail of Comet Tempel-Tuttle, a comet discovered by Ernst Tempel and Horace Parnell Tuttle around January 1, 1866. Go to http://goo.gl/OPP6D to see a picture of Comet Tempel-Tuttle. As your Mother might say, dress warm and sit in a comfortable chair for maximum enjoyment. Even if there are only a dozen meteors visible per hour, you’ll want to enjoy it.

Sunday: Humm. Early Sunday morning choices. Roll out of bed just before church. Or get up early to see Comet ISON. The comet, discovered in 2012, brightened significantly last week and is approaching naked eye status in the early morning sky. This morning at 6 a.m., ISON will be about a finger width above the bright star Spica, a fist and a half above the southeast horizon. Tomorrow morning at 6 a.m., ISON will be just below Spica, heading towards its closest approach to the Sun on November 28. By early December, Comet ISON should be visible in the early evening sky. For updates on Comet ISON’s location and activity, go to http://www.spaceweather.com/. By the way, ISON stands for International Scientific Optical Network, a series of telescopes in 11 countries. And, yes, you should get up early to see ISON. Use binoculars to increase your chances.

Monday: When you think of space, the first image that comes to mind is a few large, massive bodies surrounded by a lot of empty space. After all, it is called “outer space”, not “outer stuff”. But that so-called empty space is filled with powerful radiation and high-speed sub-microscopic particles. Much of this is dangerous to life. However, many planets, including Earth, have a shield against radiation and particles called a magnetic field. Jupiter’s magnetic field is the strongest of all the planets. Find Jupiter one fist above the east-northeast horizon at 9 p.m. For more information about magnetic fields, go to http://goo.gl/OYShj.

Tuesday: Venus is one fist above the south-southwest horizon at 5 p.m.

Wednesday: Sunday: Most constellations don’t look like the object their name refers to. Most constellations don’t have such a simple to object to emulate as Triangulum. As you probably guessed, Triangulum is shaped like a princess. Wait…. Just a second…. I read my book wrong. Triangulum is shaped like a thin isosceles triangle. Mothallah is the only named star in the constellation. In Latin this star is called Caput Trianguli, the head of the triangle. Triangulum is seven fists held upright and at arm’s length above the south horizon at 9 p.m. It is pointing down and to the right with Mothallah being the southernmost star at this time of night. The Triangulum Galaxy can be seen with binoculars about a half a fist to the right of Mothallah.

Thursday: You know winter is coming when Orion is visible in the evening sky. It is about a fist above the east-southeast horizon at 9 p.m.

Friday: The Nature of Night event takes place tomorrow from 10 a.m. to 3 p.m. in the Science Building on the CWU campus. There will be planetarium shows, fun nighttime projects, telescopes, animals, cookies and much more. Go to http://www.cwu.edu/cesme/nature-night 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.

Friday, November 8, 2013

The Ellensburg sky for the week of 11/9/13

Today: The Northern Taurid meteor shower peaks this weekend. You’ll want to stay up late to see the most meteors because the waxing crescent moon doesn’t set until about midnight so the late night sky will be moon-free. Under the best conditions, you can expect about 10 meteors an hour with some of them being bright fireballs. A few weeks ago, the related Southern Taurid meteor shower produced many fireball sightings in the southwest United States. Meteor showers are named after the constellation from which the meteors appear to originate. These meteors appear to come from a point in Taurus the bull, near the open star cluster called the Pleiades. This point is about six fists held upright and at arm’s length above the southeast horizon at 11 p.m. You can follow this point throughout the night, as it will remain one fist the V-shaped Hyades Cluster with its bright star Aldebaran (pronounced Al-deb’-a-ran). Meteors are tiny rocks that burn up in the atmosphere when the Earth runs into them. These rocks are broken off parts of Comet 2P/Encke.

Sunday: “I’m a little teapot short and stout. All this week, Venus is on my spout.” All this week, the bright planet Venus is on the spout of the teapot-shaped asterism Sagittarius. It is one fist above the south-southwest horizon at 5 p.m.

Monday: We wish you a Merry Martinmas. We wish you a Merry Martinmas. We wish you a Merry Martinmas. And a happy Monday. Martinmas is a holiday in many parts of the world commemorating Saint Martin of Tours. He was buried on November 11, 397. What does this have to astronomy? Not much except that the celebration on November 11 often doubles as a cross-quarter day celebration, a day that is halfway between an equinox and a solstice.

Tuesday: Jupiter is one and a half fists above the east-northeast horizon at 10 p.m.

Wednesday: Imagine Opie and Andy Taylor walking down the dirt path at night to that fishing hole in the sky. They’d probably be looking to catch Pisces, the two fish already conveniently tied together with two ropes. The ropes are connected at the star Alrescha, Arabic for “the cord”. Alrescha is four and a half fists above due south at 10:30 p.m. The fish are attached to lines of stars that branch out at one o’clock and three o’clock from Alrescha. By the way, “The Fishing Hole”, The Andy Griffith Show’s theme song, was rated the 20th best TV theme song of all time by ign.com. That’s too low of a rating in my opinion.

Thursday: Have you even seen a Black Hole? Neither have scientists. But they have seen the effects of a Black Hole. 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 six fists above the west horizon at 7 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.

Friday: I am guessing that some of you don’t like the line of reasoning from Thursday: 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.