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PICTURE OF THE DAY

Rupes Recta is a feature on the Moon known as the Straight Wall.

The Straight Wall

Rupes Recta is a feature on the Moon known as the Straight Wall. It is a linear fault and probably the best-known lunar escarpment. The Straight Wall is 68 miles (110 kilometers) long and about a mile wide (1 to 2km). (8-inch Meade LX10 Schmidt-Cassegrain telescope with 2x Tele Vue Powermate for f/20, Imaging Source DBK51 planetary video camera, stack of the best 20 percent of 800 images, taken January 20, 2013, between 6 p.m. and 10 p.m. EST)

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The Milky Way

2010 Astroimaging Contest: General category entrants

Image entries ranged from star trails to solar halos, but the category winner is a stunning Milky Way composite.
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