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发帖数: 1994 | 1 Dumbbell Nebula Halo
Credit & Copyright: Robert Gendler
Explanation: In 1764, French astronomer Charles Messier sighted this gorgeous cosmic
cloud which he described as an oval nebula without stars. Cataloged as M27, it is now
popularly known as the Dumbbell Nebula, not for its substandard academic performance but
for the elongated shape, like a bar with weights on each end, which first caught Messier's eye.
This deep image of the bright planetary nebula does reveal the Dumbel |
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