Astronomy
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This object was the first [http://en.wikipedia.org/wiki/Planetary_nebula <u>planetary nebula</u>] to be discovered; by [http://en.wikipedia.org/wiki/Charles_Messier <u>Charles Messier</u>] in 1764. At its brightness of [http://en.wikipedia.org/wiki/Visual_magnitude <u>visual magnitude</u>] 7.5 and its diameter of about 8 [http://en.wikipedia.org/wiki/Arcminute <u>arcminutes</u>], it is easily visible in binoculars, and a popular observing target in [http://en.wikipedia.org/wiki/Amateur_astronomy <u>amateur telescopes</u>].
 
This object was the first [http://en.wikipedia.org/wiki/Planetary_nebula <u>planetary nebula</u>] to be discovered; by [http://en.wikipedia.org/wiki/Charles_Messier <u>Charles Messier</u>] in 1764. At its brightness of [http://en.wikipedia.org/wiki/Visual_magnitude <u>visual magnitude</u>] 7.5 and its diameter of about 8 [http://en.wikipedia.org/wiki/Arcminute <u>arcminutes</u>], it is easily visible in binoculars, and a popular observing target in [http://en.wikipedia.org/wiki/Amateur_astronomy <u>amateur telescopes</u>].
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[[Category:Planetary nebulae]]

Latest revision as of 01:13, 10 January 2018

M27 - photo from Spitzer telescope

The Dumbbell Nebula (also known as Messier 27, M 27, or NGC 6853) is a planetary nebula (PN) in the constellation Vulpecula, at a distance of about 1,360 light years.


This object was the first planetary nebula to be discovered; by Charles Messier in 1764. At its brightness of visual magnitude 7.5 and its diameter of about 8 arcminutes, it is easily visible in binoculars, and a popular observing target in amateur telescopes.