Keyhole Neb - Takahashi 105 - crop

© 2014 Klaus Brasch

The following was retrieved from Wikipedia, the free encyclopedia, at
on March 6, 2014

Keyhole Nebula

"A portion of the Carina Nebula 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. NGC 3324 is a designation for the Keyhole Nebula."

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