NGC 6492
| Galaxy NGC 6492 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | peacock |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 18 h 02 m 48.35 s |
| declination | -66 ° 25 ′ 50.3 ″ |
| Appearance | |
| Morphological type | SAB (rs) b |
| Brightness (visual) | 11.8 mag |
| Brightness (B-band) | 12.6 mag |
| Angular expansion | 2.5 ′ × 1.2 ′ |
| Position angle | 75 ° |
| Surface brightness | 12.8 mag / arcmin² |
| Physical data | |
| Affiliation | isolated |
| Redshift | 0.014482 ± 0.000026 |
| Radial velocity | 4342 ± 8 km / s |
|
Stroke distance v rad / H 0 |
(189 ± 13) · 10 6 ly (57.9 ± 4.1) Mpc |
| history | |
| discovery | John Herschel |
| Discovery date | July 22, 1835 |
| Catalog names | |
| NGC 6492 • PGC 61315 • ESO 102-022 • IRAS 17576-6625 • 2MASX J18024831-6625503 • SGC 175741-6625.8 • GC 4345 • h 3714 • HIPASS J1802-66 • 2MIG 2458 | |
NGC 6492 is an 11.8 mag bright spiral galaxy of the Hubble type Sbc in the constellation Peacock in the southern sky . It is an estimated 189 million light years from the Milky Way and about 145,000 light years in diameter.
The Type Ia supernova SN 2004fv was observed here.
The object was discovered on July 22, 1835 by John Herschel with an 18-inch reflector telescope, which displayed “pF, S, pmE, in direction of the parallel; precedes a star 12m, which is all but involved ”noted.