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. Recorded on January 28, the scene also captures the
broad tail and
bright coma of Comet McNaught, The
Great Comet of 2007.