Ring Nebula (NGC 6822)

Diffuse nebula
name = Ring Nebula in Barnard's Galaxy
type = Emission
epoch = J2000.0
ra = 19^h 44^m 36^s
dec = -14° 41′ 42″
dist_ly = 1.63 million ly
dist_pc = 0.500 Mpc
appmag_v = ~14.5
size_v = 53″
constellation = Sagittarius
radius_ly =
absmag_v =
notes = massive H II region
names = Hubble 1925 III; Hodge 4;NGC 6822B; NGC 6822-2

The Ring Nebula in Barnard's Galaxy has the official designation of Hubble 1925 III as it was the third (Roman numeral 3) object recorded in Hubble's 1925 paper, "N.G.C. 6822, A Remote Stellar System". It includes areas of bright H II emission. In Paul W. Hodge's 1977 paper it was designated Hodge 4.

Its appearance is very similar to the filamentary nebula found in the Large Magellanic Cloud (see Meaburn 1981). It most resembles the circular ring-like nebula N70 in the LMC.

ee also

* Bubble Nebula (NGC 6822)
* NGC 6822

External links

* Clayton, C.A. " [http://adsabs.harvard.edu/abs/1987MNRAS.226..493C The Dynamics of the giant ring nebula Hubble III in NGC 6822] ", "Monthly Notices of the Royal Astronomical Society", vol. 226, May 15, 1987, p. 493-504