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News for Norther Colorado and the world

Saturday, October 25, 2014

‘Earth & Sky’ Archives

Earthsky Tonight – Jan 07 2010 Two stars flag

Earthsky Tonight – Jan 07 2010 Two stars flag sun’s path through Milky Way

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org Tonight's chart shows the east-southeastern sky not long after the sky gets dark, as viewed from mid-northern latitudes. The brightest star of nighttime – Sirius – shows up close to the horizon in early evening, rising upward as evening deepens into night. Sirius is found by drawing a line through the three stars of Orion’s Belt. When an overwhelmingly bright star like Sirius hovers near the horizon, it ... Full Story

Earthsky Tonight – Jan 6 2010: Quarter moon,

Earthsky Tonight – Jan 6 2010: Quarter moon, Spica

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org Our sky chart shows the sky scene for before dawn on Thursday, January 7. Notice that the last quarter moon couples up rather closely with Spica, the brightest star to light up the constellation Virgo the Maiden. Twenty-four hours before – on Wednesday, January 6 – the moon shone closer to the ringed planet Saturn. The moon changes its position daily because it never sits still in front of the ... Full Story

Earthsky Tonight – January 5, 2010: Moon and

Earthsky Tonight – January 5, 2010: Moon and Saturn

Yes, you can catch the waning gibbous moon pairing up with the planet Saturn tonight. But you have to be a night owl or an early bird to see them shining on the dome of night. Depending on where you live, the moon and Saturn will rise over your eastern horizon late this evening or possibly even after midnight. For the specific rising time of the moon and Saturn in your sky, check out the links on our almanac page. Keep in mind that these rising times presume a level horizon. The moon and ... Full Story

Earthsky Tonight – Jan 4, 2010: Sun moves toward

Earthsky Tonight – Jan 4, 2010: Sun moves toward star Vega

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org An Australia visitor wrote, I seek to find out what speed our sun is traveling at and also how many years does it take to circumnavigate the galaxy? Our Milky Way galaxy is a collection of several hundred billion stars. It has an estimated diameter of 100,000 light-years. Our sun does indeed circumnavigate the Milky Way galaxy. In space, everything moves. There are various estimates for the speed ... Full Story

Earthsky Tonight – Latest sunrises for northern

Earthsky Tonight – Latest sunrises for northern hemisphere

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org If you like to sleep late but don’t want to miss the sunrise, this time of year should be your favorite. The latest sunrises of the year for mid-latitudes in the northern hemisphere are happening around now and will continue for another week. For those in Wichita, Kansas for example, the sunrise time for the next 8 mornings is at 7:44 a.m. Sleep on! The December solstice always brings the shortest day. But ... Full Story

Earthsky Tonight – January 2, 2010

Earthsky Tonight – January 2, 2010

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org Two major astronomical events are taking place today. First, our planet Earth is at perihelion – its closest point to the sun for the year. Second, tonight’s waning gibbous moon pairs up with a brilliant planet – the world next door – Mars. You can see Mars and the moon tonight from mid-evening until dawn. First, Earth’s perihelion – our closest point to the sun – today. It happens every year at ... 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

Earthsky Tonight – Dec 31 2009: Full moon, Blue

Earthsky Tonight – Dec 31 2009: Full moon, Blue Moon, last eclipse of 2009, on New Year’s Eve

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org On this last night of the year, nearly everyone worldwide will see the full moon all night long. The only exception will be Antarctica, where there’s a midnight sun now and no moon at all. The full moon will rise around sunset on this New Year’s Eve, climb highest in the sky around midnight, and will set around sunrise on the first day of 2010. For the Americas, Europe, Africa, and far-western Asia, ... Full Story

Earthsky Tonight – Dec 30 2009, Star Sirius is

Earthsky Tonight – Dec 30 2009, Star Sirius is torchbearer of the New Year

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org Lots of celestial lights will adorn the nighttime as the clock ticks toward the midnight hour tomorrow, bringing in the New Year. For starters, there’s Orion, the gem of all constellations. And Sirius, the brightest star of nighttime, shining to the lower left of Orion’s Belt. No less a fixture than the tolling bells that ring in the New Year, Sirius is truly the New Year’s Day star. Sirius celebrates its ... Full Story

Earthsky Tonight – Dec 29 2009, Moon and Pioneer

Earthsky Tonight – Dec 29 2009, Moon and Pioneer 10 spacecraft align in Taurus

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org Tonight, the waxing gibbous moon shines in front of the constellation Taurus the Bull. Unfortunately, the big, bright moon will wash out most of the constellation’s stars. Despite the moonlit glare, you may note Taurus’ brightest star, Aldebaran, to the right of the moon this evening, and Elnath, Taurus’ second brightest star, to the left of the moon. For the second time this month, the moon and the ... Full Story

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