Gemini South

Astronomy Picture of the Day (APoD) showcases some stunning images. Today's image shows star trails and the Gemini South telescope. The star trails appear because the exposure was about (by the looks of it) two hours long and the rotation of the Earth makes the stars appear to move across the sky. As a result, all the stars appear to turn around the points above the poles of the Earth. In this case the observatory is in Chile so all the stars appear to rotate around the point above the south pole - just off the left of this image. You can also see the Large and Small Magellanic Clouds (two dwarf galaxies) smeared out during the exposure in the top left and there is even a meteor streak visible. Beautiful.

 Gemini South Star Trails
Star trails seen with the Gemini South telescope CREDIT: Elke Schulz

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Posted in astro blog by Stuart on Friday 01st Sep 2006 (17:06 BST) | Permalink
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