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News for Norther Colorado and the world

Tuesday, March 3, 2015

‘Earth & Sky’ Archives

Earthsky Tonight – Dec 27 2009, Bellatrix

Earthsky Tonight – Dec 27 2009, Bellatrix – Orion’s third brightest – means ‘Female Warrior’

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org The constellation Orion takes center stage this month and rightly so. With an inordinate number of bright stars, it is one of the most prominent constellations in the sky. Look for Orion in the east-southeastern sky from around 6 to 7 p.m. A while ago, we talked about Orion’s two brightest stars, but the third-brightest star in Orion, Bellatrix, is often overlooked. According to Richard Hinckley Allen’s ... Full Story

Earthsky Tonight – Dec 26 2009, Moon near

Earthsky Tonight – Dec 26 2009, Moon near Ram’s head on December 26

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org As seen from North America, the waxing gibbous moon will shine right below the head of the constellation Aries the Ram this evening. So it’ll be easy to locate the Ram’s head, but the moonlit glare will make it difficult to see the 3 stars that depict the head: Hamal, Sheratan and Mesarthim. Mesarthim will be especially hard to see. This evening, the Pleiades star cluster shines nearly 30 degrees to ... Full Story

Earthsky Tonight – Dec 25 2009 Northern Cross

Earthsky Tonight – Dec 25 2009 Northern Cross stands upright on winter evenings

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org We get many questions from people in northern latitudes about if and when they can view the Southern Cross in their portion of the sky. The truth is that unless you live close to the tropics (Hawaii, or the southernmost parts of Texas or Florida for those of us in the U.S.), you will not be able to view the Southern Cross, also known as the constellation Crux. To find out how to locate Crux in Hawaii right now, look ... Full Story

EathSky Dec. 24, 2009 – Southern Cross visible

EathSky Dec. 24, 2009 – Southern Cross visible in Hawaii before sunrise

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org Here’s a gift. A reader asked us, When can I see the Southern Cross in Hawaii? At this time of year, Hawaiians can see the Southern Cross, which is also known as the constellation Crux, in the wee hours before dawn. The Southern Cross stands pretty much upright, but quite low in the southern sky. Notice the two nearby stars, Rigel Kentaurus and Hadar. Rigel Kentaurus is more commonly known as the alpha star in the constellation ... Full Story

Earthsky Tonight – Dec 23 2009 Star-hop to

Earthsky Tonight – Dec 23 2009 Star-hop to Mercury from the Summer Triangle

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org The first three stars to pop out into your western sky after sunset are Vega, Altair and Deneb. These brilliant stars make up the huge asterism known as the Summer Triangle. An asterism is a star formation that is not an officially recognized constellation. Don’t mistake the planet Jupiter (outside of our sky chart) for a Summer Triangle star. Jupiter beams in the southwestern sky, to the left of the Summer ... Full Story

EarthSky Tonight – December 22, See the Summer

EarthSky Tonight – December 22, See the Summer Triangle in winter

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.com If you’re driving around tonight, maybe visiting friends or looking at holiday lights, be sure to look for some noteworthy lights in the sky as well. In the west, shortly after sunset, you’ll find a famous “asterism, ” or noticeable pattern of stars, known as the Summer Triangle. The Triangle consists of three bright stars in three different constellations. They are Vega in the constellation Lyra the ... Full Story

EarthSky Tonight – December 21, 2009 Winter

EarthSky Tonight – December 21, 2009 Winter Solstice

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org Today is the day of the December solstice – the first day of winter in the northern hemisphere and the first day of summer in the southern hemisphere. At 5:47 p. m. Universal Time (12:47 p. m. Mountain Time) today, the sun reaches its farthest point south of the Earth’s equator, marking the precise moment of this year’s 2009 December solstice. In both the northern and the southern hemisphere, the December ... Full Story

Earthsky Tonight – Dec 20, 2009 Moon and Jupiter

Earthsky Tonight – Dec 20, 2009 Moon and Jupiter close together

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org Moon and Jupiter close together on December 20. If your sky is clear, you simply can’t miss the planet Jupiter after sunset. Jupiter will be that blazing point of light to the east (or left) of the waxing crescent moon. Be sure to look for the attractive evening couple at dusk and early evening, because the moon and Jupiter will set beneath your southwestern horizon by mid-evening tonight. Although the moon and ... Full Story

Earthsky Tonight – Dec 19 2009 Ursid meteor

Earthsky Tonight – Dec 19 2009 Ursid meteor shower active the next few nights

Courtesy of EarthSky A Clear Voice for Science www.earthsky.org Some meteor showers, like the Perseids in August, have been watched each year at the same time for many centuries. But the Ursid meteor shower, which peaks in the next day or so, has been observed for only a single century. It was first observed around the turn of the 20th century, when a skywatcher noticed that some meteors seen around this time of year weren’t random in their direction of motion across our ... Full Story

Moon passes close to galactic anticenter star

By Bruce McClure EarthSky Communications Thursday, Nov. 5, 2009 The bright waning gibbous moon rises an hour or more after nightfall tonight. If you look closely, you’ll see a star near the moon. It’s Elnath, the star representing Taurus the Bull’s northern horn. It’s a fairly bright star, though it’ll be obscured by the moonlit glare. After rising, the moon and Elnath stay out all night long tonight. (more…)

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