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News for Norther Colorado and the world

Tuesday, September 2, 2014

‘Earth & Sky’ Archives

Sky Tonight—December 22, Moon and heavenly Twins

Sky Tonight—December 22, Moon and heavenly Twins

Courtesy of EarthSky A Clear Voice for Science Visit EarthSky at www.EarthSky.org The big and bright waning gibbous moon shines in front of Gemini the Twins tonight. Our chart today shows you the view toward the east-northeast sky about three hours after sunset. Gemini’s two brightest stars are Castor and Pollux. They shine quite close to the moon tonight. The moon and Gemini swing westward throughout the night, for the same reason the sun moves westward during the day. It is ... Full Story

Sky Tonight—December 21, solstice marks day of

Sky Tonight—December 21, solstice marks day of southernmost sun

Courtesy of EarthSky A Clear Voice for Science Visit EarthSky at www.EarthSky.org Today’s 2010 December solstice comes at 23:38 (11:38 p.m.) Universal Time today, when the sun on our sky’s dome reaches its farthest point south of the celestial equator – an imaginary line around the sky directly above the Earth’s equator. Translating Universal Time to Mountain Standard Time, that is 4:38 p.m. today. How do I translate Universal Time to my time? At this solstice, we celebrate the ... Full Story

EarthSky Tonight—December 20, Total lunar eclipse

EarthSky Tonight—December 20, Total lunar eclipse

Total lunar eclipse on December 20 or 21, depending on time zone Courtesy of EarthSky A Clear Voice for Science Visit EarthSky at www.EarthSky.org There is a lunar eclipse on the night of December 20 or 21 – depending on your time zone. See below for the date in your location. This December solstice eclipse is also the northernmost total lunar eclipse for several centuries. There will not be a total lunar eclipse this far north on the sky’s dome until December 21, ... Full Story

EarthSky Tonight—December 19, Use moon to imagine

EarthSky Tonight—December 19, Use moon to imagine Pioneer 10 spacecraft

Courtesy of EarthSky A Clear Voice for Science Visit EarthSky at www.EarthSky.org As seen from around the world this Friday evening, the very round and full-looking moon will be a few days shy of full moon. Tonight’s moon will actually be a waning gibbous moon, though it will be so big and bright that you might think it is full. It will be so bright that it will erase most of the stars from the sky. Northernmost total lunar eclipse of 21st century on December 20/21 It is possible ... Full Story

EarthSky Tonight—December 18, Moon glides by

EarthSky Tonight—December 18, Moon glides by Pleiades cluster

Courtesy of EarthSky A Clear Voice for Science Visit EarthSky at www.EarthSky.org Tonight, moving eastward as it always does in orbit around Earth, the moon will pass by the famous Pleiades star cluster. Our sky chart shows you what the moon and the Pleiades cluster might look like through binoculars this early evening. Notice that the Pleiades has a dipper shape. Total lunar eclipse on December 20 or 21, depending on time zone Early stargazers sometimes described the Pleiades as a ... Full Story

EarthSky Tonight—December 17, Moon between Ram’s

EarthSky Tonight—December 17, Moon between Ram’s head and Pleiades

Courtesy of EarthSky A Clear Voice for Science Visit EarthSky at www.EarthSky.org Total lunar eclipse on December 20 or 21, depending on time zone As seen from North America, the waxing gibbous moon will shine midway between the head of the constellation Aries the Ram and the Pleiades star cluster tonight. The Pleiades star cluster shines to the east of the moon. Can you see the small dipper-shaped Pleiades cluster tonight in the moon’s glare? If not, try binoculars. The ... Full Story

EarthSky Tonight—December 16, Jupiter at eastern

EarthSky Tonight—December 16, Jupiter at eastern quadrature

Courtesy of EarthSky A Clear Voice for Science Visit EarthSky at www.EarthSky.org If you could look down on the solar system plane from outer space today, you would see that the sun, Earth and Jupiter form a 90-degree angle. Astronomers will say that Jupiter is at eastern quadrature – or 90 degrees east of the sun – today. Geometric markers such as these, for planets and moons in our solar system, are more than just academic. They indicate where you can find these bodies in our sky ... Full Story

EarthSky Tonight, December 15: Bellatrix—Orion’s

EarthSky Tonight, December 15: Bellatrix—Orion’s third brightest star—means Female Warrior

Courtesy of EarthSky A Clear Voice for Science Visit EarthSky at www.EarthSky.org The third-brightest star in Orion, Bellatrix, is often overlooked. Yet, Bellatrix is such a wonderful star. According to Richard Hinckley Allen’s classic book Star Names: Their Lore and Meaning, the Latin name Bellatrix means Female Warrior, which some find odd since the original Arabic title translates as the Conqueror. But women understand. Bellatrix represents Orion’s left shoulder. Although it ... Full Story

December 14, Focus on stars Betelgeuse and Rigel in

December 14, Focus on stars Betelgeuse and Rigel in Orion

Courtesy of EarthSky A Clear Voice for Science Visit EarthSky at www.EarthSky.org Orion the Hunter is one of the most prominent constellations in all the heavens. You cannot fail to spot Orion’s Belt – three medium-bright stars in a short, straight row – if you look eastward in the evening. The magnificent Orion Nebula, or M42, is a fuzzy patch in Orion’s Sword. Most constellations have only one bright star, but Orion has two: Rigel and Betelgeuse. Rigel is Orion’s left foot. ... Full Story

EarthSky Tonight—Dec. 13, Best night for 2010

EarthSky Tonight—Dec. 13, Best night for 2010 Geminids

Courtesy of EarthSky A Clear Voice for Science Visit EarthSky at www.EarthSky.org The best night for viewing the 2010 Geminid meteor shower might be the night of December 13 from late night until dawn (Monday before midnight, Tuesday morning after midnight). You will see the most meteors after the moon sets in the middle of the night. By the way, the bright “star” near tonight’s moon is the planet Jupiter. Generally, the shower intensifies after midnight and reaches its ... Full Story

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