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News for Norther Colorado and the world

Sunday, November 23, 2014

Posts Tagged ‘lunar’

Astronomy Picture of the Day

Astronomy Picture of the Day

Explanation: The dark, inner shadow of planet Earth is called the umbra. Shaped like a cone extending into space, it has a circular cross section most easily seen during a lunar eclipse. For example, last Saturday the Full Moon slid across the southern half of Earth's umbral shadow, entertaining moonwatchers around much of the planet. In the total phase of the eclipse, the Moon was completely within the umbra for 51 minutes.       The Umbra of Earth  Image ... Full Story

Astronomy Picture of the Day

Astronomy Picture of the Day

    Mare Orientale Credit: NASA / GSFC / Arizona State Univ. / Lunar Reconnaissance Orbiter Explanation: Shaped like a target ring bull's-eye, the Mare Orientale is one of the most striking large scale lunar features. Located on the Moon's extreme western edge, it is unfortunately difficult to see from an earthbound perspective. Still, this mosaic of the multi-ring impact basin, the youngest of the large lunar basins shows off intriguing details (full resolution mosaic), ... Full Story

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