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News for Norther Colorado and the world

Sunday, April 20, 2014

Posts Tagged ‘Milky Way’

Astronomy Picture of the Day

Astronomy Picture of the Day

The Case of the Missing Supernova Companion, Where's the other star? At the center of this supernova remnant should be the companion star to the star that blew up. Identifying this star is important for understanding just how Type Ia supernova detonate, which in turn could lead to a better understanding of why the brightness of such explosions are so predictable, which in turn is key to calibrating the entire nature of our universe. The trouble is that even a careful inspection of the center of ... Full Story

Astronomy Picture of the Day

Astronomy Picture of the Day

From Sagittarius to Scorpius, the central Milky Way is a truly beautiful part of planet Earth's night sky. The gorgeous region is captured in this wide field image spanning about 30 degrees. The impressive cosmic vista, taken in 2010, shows off intricate dust lanes, bright nebulae, and star clusters scattered through our galaxy's rich central starfields.   A Wide Field Image of the Galactic Center  Image Credit & Copyright: Ivan Eder Explanation: From Sagittarius to ... Full Story

Astronomy Picture of the Day

Astronomy Picture of the Day

In 185 AD, Chinese astronomers recorded the appearance of a new star in the Nanmen asterism - a part of the sky identified with Alpha and Beta Centauri on modern star charts. The new star was visible for months and is thought to be the earliestrecorded supernova. This multiwavelength composite image from orbiting telescopes of the 21st century, XMM-Newton and Chandra in X-rays, and Spitzer and WISE in infrared, shows RCW 86, understood to be the remnant of that stellar explosion.RCW 86: ... Full Story

Astronomy Picture of the Day

Astronomy Picture of the Day

The collaborative skyscape begins with bluish stars of Perseus at the left, but the eye is drawn to the striking, red NGC 1499. Also known as the California Nebula, its characteristic glow of atomic hydrogen gas is powered by ultraviolet light from luminous blue star Xi Persei immediately to the nebula's rightClouds of Perseus  Credit & Copyright: Image Data - Bob Caton, Al Howard, Eric Zbinden, Rogelio Bernal Andreo; Processing - Rogelio Bernal Andreo Explanation: Cosmic ... Full Story

Astronomy Picture of the Day

Astronomy Picture of the Day

Milky Way Over Switzerland Credit: Stephane Vetter (Nuits sacrees) Explanation: What's visible in the night sky during this time of year? To help illustrate the answer, a beautiful land, cloud, and skyscape was captured earlier this month over Neuchâtel, Switzerland. Visible in the foreground were the snow covered cliffs of the amphitheater shaped Creux du Van, as well as distant trees, and town-lit clouds. Visible in the night sky (at midnight) were galaxies including ... Full Story

Sky Tonight—February 18, Moon rises with Leo the

Sky Tonight—February 18, Moon rises with Leo the Lion, harbinger of spring

Courtesy of EarthSky A Clear Voice for Science Visit EarthSky at www.EarthSky.org About two hours after sunset on February 18, look for the waning gibbous moon and the constellation Leo the Lion shining side by side over the eastern horizon. The fainter stars of Leo might be hard to make out in the lunar glare tonight, but you should be able to spot Regulus, Leo’s brightest star, and one of the brightest stars in our night sky. Tomorrow, the moon will rise more than an hour later ... Full Story

Sky Tonight—February 10, Somber red Betelgeuse

Sky Tonight—February 10, Somber red Betelgeuse shines in the shoulder of Orion

Courtesy of EarthSky A Clear Voice for Science Visit EarthSky at www.EarthSky.org At nightfall and early evening, people at mid-northern latitudes see the famous Belt of Orion – three stars in a short, straight row – about halfway between the southern horizon and straight overhead. Later at night, you will find Orion in the southwest. Above Orion’s Belt, you will find one of the sky’s most famous stars, ruddy-hued Betelgeuse. Kids especially like Betelgeuse, because its name ... Full Story

Sky Tonight—January 17, Sun moves toward star Vega

Sky Tonight—January 17, Sun moves toward star Vega in journey around galaxy

Courtesy of EarthSky A Clear Voice for Science Visit EarthSky at 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 the sun ... Full Story

Astronomy Photo of the Day

Astronomy Photo of the Day

The Seagull Nebula Image Credit & Copyright: Michael Sidonio Explanation: This broad expanse of glowing gas and dust presents a bird-like visage to astronomers from planet Earth, suggesting its popular moniker - The Seagull Nebula. This portrait of the cosmic bird covers a 1.6 degree wide swath across the plane of the Milky Way, near the direction of Sirius, alpha star of the constellation Canis Major. Of course, the region includes objects with other catalog ... Full Story

Sky Tonight—January 11,Two stars flag sun’s path

Sky Tonight—January 11,Two stars flag sun’s path through Milky Way

Courtesy of EarthSky A Clear Voice for Science Visit EarthSky at www.EarthSky.org You can use the brilliant star Sirius – and the star Vega – to imagine the direction our sun and solar system are traveling through space. The sun in its orbit is traveling away from Sirus and toward the star Vega. Although we could not fit them both on one chart, Vega shines over your northwestern horizon, opposite Sirius, at nightfall at this time of year. If you stand outside in early evening with ... Full Story

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