NGC 6195
Galaxy in the constellation Hercules
From Wikipedia, the free encyclopedia
NGC 6195 is a large spiral galaxy in the constellation of Hercules. Its velocity with respect to the cosmic microwave background is 9,005±3 km/s, which corresponds to a Hubble distance of 433.2 ± 30.3 Mly (132.82 ± 9.30 Mpc).[1] Additionally, four non-redshift measurements give a farther mean distance of 466.40 ± 13.64 Mly (143.000 ± 4.183 Mpc).[2] It was discovered by German-British astronomer William Herschel on 30 May 1791.[3][4]
| NGC 6195 | |
|---|---|
NGC 6195 imaged by SDSS | |
| Observation data (J2000 epoch) | |
| Constellation | Hercules |
| Right ascension | 16h 36m 32.5835s[1] |
| Declination | +39° 01′ 40.475″[1] |
| Redshift | 0.029986±0.00000861[1] |
| Heliocentric radial velocity | 8,990±3 km/s[1] |
| Distance | 466.40 ± 13.64 Mly (143.000 ± 4.183 Mpc)[1] |
| Group or cluster | Abell 2199 |
| Apparent magnitude (V) | 14.0g[1] |
| Characteristics | |
| Type | Sb[1] |
| Size | ~217,100 ly (66.56 kpc) (estimated)[1] |
| Apparent size (V) | 1.48′ × 0.83′[1] |
| Other designations | |
| IRAS F16348+3907, 2MASX J16363253+3901408, UGC 10469, MCG +07-34-118, PGC 58596, CGCG 224-075[1] | |
NGC 6195 is a Seyfert I galaxy, i.e. it has a quasar-like nucleus with very high surface brightnesses whose spectra reveal strong, high-ionisation emission lines, but unlike quasars, the host galaxy is clearly detectable.[5][6] It is also a LINER galaxy, i.e. a galaxy whose nucleus has an emission spectrum characterized by broad lines of weakly ionized atoms.[7][6]
Abell 2199 cluster
NGC 6195 is a member of the galaxy cluster Abell 2199.[8]
Supernova
One supernova has been observed in NGC 6195:
- SN 1975K (type unknown, mag. 17.8) was discovered by American astronomer Charles Kowal on 9 August 1975.[9][10]
