NGC 6384
| NGC 6384 | |
|---|---|
Hubble Space Telescope image of NGC 6384
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| Observation data (J2000 epoch) | |
| Constellation | Ophiuchus |
| Right ascension | 17h 32m 24.302s[1] |
| Declination | +07° 03′ 36.97″[1] |
| Helio radial velocity | 1,665 km/s[2] |
| Distance | 60.3 Mly (18.5 Mpc)[2] |
| Type | SAB(r)bc[3] |
| Mass | 1.05 × 1011[3] M☉ |
| Apparent dimensions (V) | 9′.9 × 9′.9[4] |
| Other designations | |
| UGC 10891 | |
NGC 6384 is a barred spiral galaxy located about 60 million light-years away in the northern part of the constellation Ophiuchus. It has a morphological classification of SAB(r)bc,[3] indicating that it is a weakly barred galaxy (SAB) with an inner ring structure (r) orbiting the bar, and moderate to loosely wound spiral arms (bc).[5] The galaxy is inclined by an angle of 47° to the line of sight, along a position angle of 40°.[6] The estimated mass of the stars in this galaxy is 105 billion times the mass of the Sun.[3]
At one time NGC 6384 was considered a normal galaxy with no activity in the nucleus. However, it is now classified as a transition object (T2), which is thought to be a LINER-type galaxy whose emission-line spectra is contaminated by H II regions in the nucleus.[7]
On 24 June 1971, a type Ia supernova event was discovered in this galaxy at 27″ east and 20″ north of the nucleus. It reached a peak visual magnitude of 12.85 around the end of June.[8] Designated SN 1971L, it was situated along a spiral arm, suggesting that the progenitor was not a member of the older, more evolved stellar population of the galaxy.[6]
References
- ↑ 1.0 1.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 2.0 2.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 3.0 3.1 3.2 3.3 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Buta et al (2007), p. 211.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 6.0 6.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
External links
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Wikimedia Commons has media related to Lua error in package.lua at line 80: module 'strict' not found.. |
- NGC 6384 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
- Lua error in package.lua at line 80: module 'strict' not found.
