The Ellensburg, WA sky for the week of September 14, 2019

Saturday: “You know Aries and Cancer and Draco and Libra. Leo and Pisces and Virgo and Hydra. But, do you recall, the pointiest asterism of all? Triangulum, the three sided asterism, had a very pointy shape. And if you didn't know it, you would say it poked an ape.” Sorry. Some stores have started sending out their Christmas catalogues and that has put me in the mood to modify some Christmas songs. Anyway, Triangulum is a small constellation between the more prominent Andromeda and Aries. Its main feature is a skinny triangle oriented parallel to and nearly four fists held upright and at arm’s length above the eastern horizon at 11 p.m.

Sunday: Fomalhaut, the southernmost bright star visible from the northern USA, is one fist above the south-southeastern horizon at 11 p.m. In 2008, Fomalhaut and its surroundings became the first star system with an extrasolar planet to be directly imaged  https://apod.nasa.gov/apod/ap081114.html. 

Monday: At 8:30 p.m., Jupiter is one and a half fists above the southeastern horizon and Saturn is two fists above the southern horizon.

Tuesday: The bright star Vega is about five fists above the western horizon at 11:00 p.m. Its fellow Summer Triangle star Deneb is about two fists above it. Altair, the third star in the triangle, is about four fists above the southwestern horizon.

Wednesday: According to “One world, group hug, love everyone” philosophy, political borders are human-made and can’t be seen from space so why can’t we all just get along. According to real world, pragmatic discoveries, some human-made political borders CAN be seen from space. Since 2003, India has illuminated its border with Pakistan to prevent illegal crossings. In 2011, astronaut Ron Garan took a picture of that border from the International Space Station. For more information, including the photo, go to http://goo.gl/mY8xG.

Thursday: Aldebaran and Hyades Cluster are to the lower left of the Moon all night. You can first find them low in the eastern sky at 11:00 p.m.

Friday: Earlier this week, you read about Fomalhaut, the second brightest star with a planet. The brightest star known to have a planet is Pollux, in the constellation Gemini. (First and second brightest is misleading here because they are nearly identical in magnitude, 1.15 vs. 1.16.) Pollux is four and a half fists above due east at 5:30 a.m., right below its “twin” star Castor.  Read more about Pollux at https://goo.gl/cL5t9p.

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.