Dumbbell Nebula

Dumbbell Nebula
Emission nebula
Planetary nebula
	Dumbbell Nebula (Messier 27) in Vulpecula
Observation data: J2000 epoch
Right ascension	19h 59m 36.319s
Declination	+22° 43′ 16.312″
Distance	389+15; −6 pc
Apparent magnitude (V)	7.4
Apparent dimensions (V)	8.0′ × 5.6′
Constellation	Vulpecula
Physical characteristics
Radius	1.44+0.21; −0.16[a] ly
Absolute magnitude (V)	−0.6+0.4; −0.3[d]
Notable features	Central star radius is among the largest; known for a white dwarf.
Designations	NGC 6853, M 27,; Diabolo Nebula,; Dumb-Bell Nebula,
	See also: Lists of nebulae

The Dumbbell Nebula (also known as the Apple Core Nebula, Messier 27, and NGC 6853) is a planetary nebula (nebulosity surrounding a white dwarf) in the constellation Vulpecula, at a distance of about 1360 light-years.^[1] It was the first such nebula to be discovered, by Charles Messier in 1764. At its brightness of visual magnitude 7.5 and diameter of about 8 arcminutes, it is easily visible in binoculars^[4] and is a popular observing target in amateur telescopes.

^ ^a ^b ^c ^d ^e ^f ^g ^h "M 27". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2023-12-31.
^ "Messier 27". SEDS Messier Catalog. Retrieved 21 July 2024.
^ Cite error: The named reference ODelletal2002 was invoked but never defined (see the help page).
^ "M 27". 2016-10-15.

[simbad-1] ^ ^a ^b ^c ^d ^e ^f ^g ^h "M 27". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2023-12-31.

[2] "Messier 27". SEDS Messier Catalog. Retrieved 21 July 2024.

[ODelletal2002-3] Cite error: The named reference ODelletal2002 was invoked but never defined (see the help page).

[4] "M 27". 2016-10-15.

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