Three Galaxies and a Comet

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. Follow APOD on: Facebook , Google Plus , Instagram , or Twitter