Explanation: Diffuse starlight and
dark nebulae along the southern Milky Way arc over the horizon and sprawl
diagonally through this gorgeous nightscape. The breath-taking mosaic spans a
wide 100 degrees, with the rugged terrain of the Patagonia, Argentina region in
the foreground. Along with the insider's view of our own galaxy, the image
features our outside perspective on two irregular satellite galaxies - the
Large and Small Magellanic Clouds. The scene also captures the broad tail and
bright coma of Comet McNaught, the Great Comet of 2007. Currently, many sky
enthusiasts are following the development of Comet ISON, a comet which might
become the Great Comet of 2013.
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