Bubble Nebula (NGC 6822)
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For the nebula of the same name in our own galaxy, see Bubble Nebula.
| Bubble Nebula in Barnard's Galaxy | |
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| Observation data: J2000 epoch | |
|---|---|
| Type | Emission |
| Right ascension | 19h 44m 31.8s[1] |
| Declination | -14° 41′ 57″[1] |
| Distance | 1.63 ± 0.03 Mly (500 ± 10 kpc)[2][3][4] |
| Apparent magnitude (V) | 15[1] |
| Apparent dimensions (V) | 48″ × 32″ |
| Constellation | Sagittarius |
| Physical characteristics | |
| Notable features | massive H II region |
| Other designations | Hubble 1925 I, Hubble I,[1] MCG -02-50-002,[1] |
| See also: Diffuse nebula, Lists of nebulae | |
The Bubble Nebula in Barnard's Galaxy has the official designation of Hubble 1925 I as it was the first (Roman numeral 1) object recorded in Hubble 1925. It includes areas of bright H II[1] emission. It is located north-west of the larger Hubble III.
[edit] Notes
[edit] References
- Cannon, John M.; Walter, Fabian; Armus, Lee; Bendo, George J.; Calzetti, Daniela; Draine, Bruce T.; Engelbracht, Charles W.; Helou, George; et al. (December 2006), “The Nature of Infrared Emission in the Local Group Dwarf Galaxy NGC 6822 as Revealed by Spitzer”, The Astrophysical Journal 652 (2): 1170-1187, <http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=2006ApJ...652.1170C>
- Hubble, Edwin P. (December 1925), “NGC 6822, a remote stellar system”, Astrophysics Journal 62: 409-433, <http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1925ApJ....62..409H>
- Karachentsev, I. D.; Karachentseva, V. E.; Hutchmeier, W. K. & Makarov, D. I. (April 2004), “A Catalog of Neighboring Galaxies”, Astronomical Journal 127: 2031-2068, <http://adsabs.harvard.edu/abs/2004AJ....127.2031K>
- Karachentsev, I. D. & Kashibadze, O. G. (January 2006), “Masses of the local group and of the M81 group estimated from distortions in the local velocity field”, Astrophysics 49 (1): 3-18, <http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=2006Ap.....49....3K>
- NED (February 24, 2007), Results for search on MCG -02-50-002, <http://nedwww.ipac.caltech.edu/cgi-bin/nph-objsearch?objname=MCG+-02-50-002>
[edit] External links
- The Bubble Nebula (NGC 6822) on the WikiSky: DSS2, SDSS, IRAS, Hidrogen α, X-Ray, Astrophoto, Sky Map
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