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News for Norther Colorado and the world

Saturday, October 25, 2014

Posts Tagged ‘Castor’

Earthsky Tonight—May 18, Moon near Mars, Castor,

Earthsky Tonight—May 18, Moon near Mars, Castor, Pollux

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org At nightfall, the waxing crescent moon lines up with Castor and Pollux, the two brightest stars in the constellation Gemini the Twins. People often refer to these stars as ‘The Twins’ but they aren’t really twins at all. At a distance of about 34 light-years, Pollux wins acclaim as the closest giant star to our solar system. It’s one of the very few giant stars in our galaxy known to harbor a planet. Castor is ... Full Story

Earthsky Tonight—May, 17, Moon near Venus, Castor

Earthsky Tonight—May, 17, Moon near Venus, Castor and Pollux

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org This evening after dark look in the west to find a lovely waxing crescent moon in front of the constellation Gemini, also known as the Twins. The Gemini Twins – Castor and Pollux – stand upright upon the horizon at early evening. As evening deepens into late night, Gemini slowly but surely sinks beneath the horizon, to disappear from the sky by around 1:00 a.m. tomorrow morning. Can you identify the stars Castor and ... Full Story

Earthsky Tonight — March 25, 2010: Moon and Mars

Earthsky Tonight — March 25, 2010: Moon and Mars guide to Beehive star cluster

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org If you observed the moon last night, you know that the planet Mars appeared to the upper left of the moon. This evening, you will find Mars as a bright orangish “star” to the upper right of the moon. You will need a medium sized telescope and good seeing conditions to see much on Mars, but a small telescope or even a good pair of binoculars will show you many features on the moon. The large dark spots are lava ... Full Story

Earthsky Tonight — March 24, Moon close to Mars

Earthsky Tonight — March 24, Moon close to Mars

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org If you have been tracking the moon over the past few evenings, you know that it has been passing through some of the major players in the late winter, early spring skies. It skimmed the Pleiades star cluster on Saturday, then it plodded through Taurus the Bull, across Gemini the Twins and after midnight tonight it slips into Cancer the Crab. However, unlike Taurus and Gemini, Cancer is a very faint ... 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 – January 30, 2010 Moon in Leo,

Earthsky Tonight – January 30, 2010 Moon in Leo, Mars in Cancer

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org Our chart shows the eastern sky for around 8 to 9 o’clock tonight. The planet Mars shines brightly above the full-looking waning gibbous moon. Regulus, the brightest star in the constellation Leo the Lion, lurks to the lower left of the moon. Although Regulus rates as a first-magnitude star, it may be hard to spot in the lunar glare tonight. Try binoculars, if you can’t see Regulus with the eye alone. The ... Full Story

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 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 – Moon near Gemini’s

Earthsky Tonight – Moon near Gemini’s stars

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org Here is the moon again, in line with the the constellation Gemini’s brightest stars, Castor and Pollux, and not that far from the planet Mars. The moon will be even closer to Mars tomorrow night. Many people write to ask about the fact that, from Earth, we see only one side of the moon. The moon rotates about once a month, in contrast to the once-a-day rotation of our own planet ... Full Story

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