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News for Norther Colorado and the world

Monday, July 6, 2015

‘Earth & Sky’ Archives

Earthsky Tonight, January 23, 2010: Moon in front of

Earthsky Tonight, January 23, 2010: Moon in front of Aries the Ram

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org Tonight, the waxing gibbous moon shines in front of the constellation Aries the Ram. At nightfall, you’ll find the moon high in your southern sky, and the three stars outlining the head of the Ram to the upper right of the moon. These Aries’ stars are Hamal, Sheratan and Mesarthim. Hamal is the brightest of these three stars, though none is a particularly bright. No doubt, the moonlit glare will tarnish the ... Full Story

Earthsky Tonight, January 22, 2010: Moon and stars of

Earthsky Tonight, January 22, 2010: Moon and stars of Aries point to a hard-to-see galaxy

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org As seen from North America this evening, the fat waxing crescent moon shines in front of the constellation Pisces the Fishes, not far at the Aries/Pisces border. The three stars to the moon’s upper left depict the head of Aries the Ram. In their order of brightness, these stars are Hamal, Sheratan and Mesarthim. The star Eta Piscium in Pisces may be hard to see tonight because of the moonlit glare, but this star ... Full Story

Earthsky Tonight, January 21, 2010: Identify the stars

Earthsky Tonight, January 21, 2010: Identify the stars of the Winter Circle

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org Tonight’s chart covers a wider area of sky than what we typically show. It’s in answer to a reader in Nashville, who wrote, I’ve heard mention of the Winter Circle of Stars. Could you list the stars in this circle? You will find these stars at this time of year by looking east-southeast in early-mid evening. Again, this is a large pattern and covers a wide area of sky, but as always it’s easiest to ... Full Story

Earthsky Tonight, January 20, 2010: Achernar, the end

Earthsky Tonight, January 20, 2010: Achernar, the end of the River

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org Today’s chart is almost just like the January 16 chart. But today we’ve changed our observing location. Normally, our charts are set for the geographical center of the continental U.S. – say, somewhere in Kansas. Today’s chart is set to the extreme southern U.S. It’s as if we’re gazing at stars from the southernmost part of the country . . . maybe along the Texas/Mexico border, or from the Florida ... Full Story

Earthsky Tonight, January 19, 2010: Monoceros is the

Earthsky Tonight, January 19, 2010: Monoceros is the constellation of the Unicorn

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org Today’s chart shows something you’ll need a very dark sky to see. In fact, the view will probably be better after the waxing crescent moon sets around mid-evening tonight. Focus in on the stars Betelgeuse, Sirius and Procyon. They make a triangle, which is sometimes called the Winter Triangle. Within this triangle of stars, hidden in between the many bright and glittering stars and constellations visible at this ... Full Story

Earthsky Tonight, January 18, 2010: Moon and Jupiter

Earthsky Tonight, January 18, 2010: Moon and Jupiter move eastward through the stars

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org Did you see the moon to the west (or right) of the blazing planet Jupiter yesterday, on Sunday evening? This Monday evening, in contrast, the waxing crescent moon will appear above Jupiter. This is because the moon moves eastward in front of the backdrop stars at about 13 degrees per day. For a measurement reference, your fist at an arm length approximates 10 degrees. The moon isn’t the only solar sytem ... Full Story

Earthsky Tonight, January 17, 2010 Moon and Jupiter

Earthsky Tonight, January 17, 2010 Moon and Jupiter set as Mars rises

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org Tonight and tomorrow night, the moon will guide you to the two brightest planets in the January evening sky – Jupiter and Mars. As darkness falls, look low in your west or southwest sky for the thin waxing crescent moon. That blazing point of light by the moon is the planet Jupiter. You can’t miss Jupiter – it’s far brighter than any star. The moon and Jupiter set shortly after full darkness falls ... Full Story

Earthsky Tonight: January 16, 2010 – See a river

Earthsky Tonight: January 16, 2010 – See a river of stars called Eridanus

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org Here’s a constellation for you if you have access to a very dark sky. You won’t see this one from the city, or even the suburbs. Eridanus the River begins near the star Rigel in the constellation Orion the Hunter – and wells up in a great loop before ambling back down toward the southern horizon. Eridanus is one of the longest and faintest constellations. It’s variously said to represent the ... Full Story

Earthsky Tonight: January 15, 2010 – New moon

Earthsky Tonight: January 15, 2010 – New moon and solar eclipse on January 15

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org The first of this year’s 2 solar eclipses takes place today, on January 15, 2010. The second solar eclipse will fall on July 11, 2010. Neither eclipse, though, is visible from North America. If you are in a position to observe today’s eclipse, remember to use proper eye protection. Many people in Africa and Asia will see a partial eclipse of the sun today. But to view the annular eclipse ... Full Story

Earthsky Tonight: January 14, 2010 – Annular

Earthsky Tonight: January 14, 2010 – Annular eclipse in Africa and Asia on January 15

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org There are at least 2 solar eclipses in every calendar year. A solar eclipse happens when the new moon passes in front of the sun, blocking out the view of the sun’s disk. If the moon totally covers over the sun, it’s called a total solar eclipse. If the moon partially covers over the sun, it’s a partial solar eclipse. The first of the year’s two solar eclipses takes place tomorrow (Friday, ... Full Story

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