Today's Image of the Day for 29/9/11 - Keyhole Nebula
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| Keyhole Nebula courtesy of WallpaperCavern |
Located around 8000 light years away in the Carina Nebula this portion is known as the Keyhole Nebula, a name given to it by John Herschel in the 19th century. The Keyhole Nebula is actually a much smaller and darker cloud of cold molecules and dust, containing bright filaments of hot, fluorescing gas, silhouetted against the much brighter background nebula. The diameter of the Keyhole structure is approximately 7 light years.
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