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News for Norther Colorado and the world

Saturday, August 23, 2014

‘Earth & Sky’ Archives

Earthsky Tonight – Feb 28, 2010: Full moon comes

Earthsky Tonight – Feb 28, 2010: Full moon comes February 28

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org The February full moon falls at 16:38 Universal Time today. That is 10:38 a.m. in the central U.S. Every full moon takes place at the same instant for everyone all around the world – but your clock time for the full moon varies by your time zone. To look full to us, the moon has to be opposite the sun. That moment when it’s most opposite the sun for the month marks the instant of full moon – and that ... Full Story

Earthsky Tonight – Feb 27, 2010: Some names for

Earthsky Tonight – Feb 27, 2010: Some names for the February full moon

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org Although the moon won’t be full until tomorrow, it falls during the morning daylight hours for much of North America. As seen from our part of the world, the moon will probably appear as full tonight as it will tomorrow night. The image – a February moon from years past – was taken by Dan Bush. His Missouri Skies Moon Page is not to be missed. This February full moon goes by many different names. The ... Full Story

Earthsky Tonight – Feb 26, 2010: Stars in the

Earthsky Tonight – Feb 26, 2010: Stars in the daytime

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org People often ask if stars are up there, beyond our blue sky, during the day. The answer is surely yes, because Earth is a planet in space, surrounded on all sides by stars. Here is a view looking southeast at mid-morning today or tomorrow. Of course, you really cannot see the stars, but they are there. The constellation behind the sun around now is Aquarius the Water Bearer. This is true each year between ... Full Story

Earthsky Tonight – Feb 25, 2010: Moon and Mars

Earthsky Tonight – Feb 25, 2010: Moon and Mars close together

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org The waxing gibbous moon and planet Mars can be seen in the eastern sky at nightfall tonight. These two worlds climb highest in the sky in mid to late evening and set in the west tomorrow before the onset of dawn. You can see the moon and Mars close together on our sky’s dome for most of the night tonight. The moon and Mars aren’t really close together in space. They only appear to be close, because they ... Full Story

Earthsky Tonight – Feb 24, 2010: Moon near Mars,

Earthsky Tonight – Feb 24, 2010: Moon near Mars, Castor, Pollux

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org The big and bright waxing gibbous moon erases many stars from the blackboard of night tonight. Nonetheless, the two brightest stars in the constellation Gemini the Twins – Castor and Pollux – should be able to withstand the moonlit glare. The moon is near with Castor and Pollux this evening. However, you can’t count on the moon to guide you to Castor and Pollux every night. Tomorrow, at this same time, you ... Full Story

Earthsky Tonight – Feb 23, 2010: Moon highlights

Earthsky Tonight – Feb 23, 2010: Moon highlights Winter Circle

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org This evening, the waxing gibbous moon nearly aligns with the galactic anticenter – the direction opposite to the center of our home galaxy, the Milky Way. Tonight’s moon, moreover, resides inside the Winter Circle – an incredibly large star configuration made of six brilliant winter stars. The Winter Circle – sometimes called the Winter Hexagon – is not one of the 88 recognized constellations. Rather, ... Full Story

Earthsky Tonight – February 21, 2010: First

Earthsky Tonight – February 21, 2010: First quarter moon near Pleiades

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org The first quarter moon falls today at 6:42 p.m. Central Time. (That’s 7:42 p.m. Eastern time, 5:42 p.m. Mountain Time and 4:42 p.m. Pacific Time.) At first quarter phase, the lunar disk is half-illuminated in sunshine and half-engulfed in the moon’s own shadow. In other words, you are seeing half of the moon’s daytime side and half of the moon’s nighttime side. The moon is in front of the constellation ... Full Story

Earthsky Tonight – February 20, 2010: Orion

Earthsky Tonight – February 20, 2010: Orion shows you the ecliptic and summer solstice point

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org Diana asks, "Why is the waxing moon always so high in the evening sky in late winter and early spring?" In a nutshell, Diana, it is because the ecliptic arcs high across the evening sky right now. The ecliptic is the Earth’s orbital plane projected onto stellar sphere, or the dome of sky. The ecliptic is often shown on sky charts because the moon and planets are found on or near the ecliptic. If you are familiar ... Full Story

Earthsky Tonight – February 18, 2010: Epsilon,

Earthsky Tonight – February 18, 2010: Epsilon, Auriga’s distant and mysterious star

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org At early evening, look up high for the brilliant star Capella, the brightest in the constellation Auriga the Charioteer. Close to Capella is a prominent triangle of starlets called The Kids. Lighting up the apex of this triangle is the star Epsilon Aurigae (Almaaz), one of the most mysterious stars in all the heavens. Although Capella looks much brighter than Epsilon, that is because Capella is so much closer. ... Full Story

Earthsky Tonight – February 17, 2010: Asteroid

Earthsky Tonight – February 17, 2010: Asteroid Vesta at opposition

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org Vesta is the third largest body in the asteroid belt – a region of the solar system where thousands of little rocky worlds orbit the sun between the orbits of Mars and Jupiter. Vesta has a diameter of about 330 miles. Vesta will be at opposition – opposite the sun in Earth’s sky – tonight. It is around opposition time that a solar system world comes closest to Earth and shines most brightly in our sky. ... Full Story

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