M27 Dumbbell Nebula (Denis Janky)

Celestial hemisphere: Northern · Constellation: Vulpecula (Vul) · Contains: Dumbbell Nebula · M 27 · NGC 6853 · PK060-03.1

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M27 Dumbbell Nebula

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M27 Dumbbell Nebula

This image is from 2017 and is the first completed image for the newly installed C14/Paramount setup.

M27 is one of a class of objects known as planetary nebulae. In fact, it was the first planetary nebula to be discovered, and the "M" designation refers to the catalog of objects discovered by Charles Messier. The term planetary nebula is a misnomer, actually, because planetary nebulae have nothing whatsoever to do with planets, as these are gaseous nebulae that are far from our Solar System. The name was given by William Herschel, likely because views of these objects through small telescopes reveal roughly round shapes that resemble planets. In reality, these objects are the result of stars that have ejected their outer layers. What is left of the original star can be seen in the middle of the nebula, and this central star is now classified as a white dwarf. The highly energetic radiation emitted by the central star excites the gases in the blown-off material, resulting in the material glowing on its own. (The other stars seen within the nebula are probably not contained within, but are simply foreground or background stars that happen to be in the line of sight.) I have seen various estimates of the distance to M27. Maybe 1200 light years is a fair guess.

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Status	Advanced success
Started	...
Astrometry.net job	3537502
PixInsight job	6UFZ2479HK5SN06TAUZ3JDXESOTH33TL
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	19h59m36s.413
RA (top/left)	19h59m13s.280
RA (top/right)	19h58m28s.903
RA (bottom/right)	19h59m59s.999
RA (bottom/left)	20h00m44s.190

Dec (center)	+22°43′18″.53
Dec (top/left)	+23°02′22″.46
Dec (top/right)	+22°30′58″.11
Dec (bottom/right)	+22°24′11″.24
Dec (bottom/left)	+22°55′31″.65

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M27 Dumbbell Nebula

M27 Dumbbell Nebula

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