NGC 4630
| Galaxy NGC 4630 |
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|---|---|
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| SDSS recording | |
| AladinLite | |
| Constellation | Virgin |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 12 h 42 m 31.1 s |
| declination | + 03 ° 57 ′ 37 ″ |
| Appearance | |
| Morphological type | IB (s) m? / HII |
| Brightness (visual) | 12.5 mag |
| Brightness (B-band) | 13.1 mag |
| Angular expansion | 1.7 ′ × 1.2 ′ |
| Position angle | 10 ° |
| Surface brightness | 13.1 mag / arcmin² |
| Physical data | |
| Affiliation | Virgo Galaxy Cluster LGG 292 |
| Redshift | 0.002458 ± 0.000013 |
| Radial velocity | 737 ± 4 km / s |
|
Stroke distance v rad / H 0 |
(30 ± 2) x 10 6 ly (9.09 ± 0.64) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | February 2, 1786 |
| Catalog names | |
| NGC 4630 • UGC 7871 • PGC 42688 • CGCG 042-208 • MCG + 01-32-136 • IRAS 12399 + 0414 • GC 3164 • H II 532 • h 1395 • LDCE 0904 NED228 | |
NGC 4630 is a 12.5 likes bright irregular galaxy of Hubble type IBm in the constellation Virgo . As part of the Virgo Galaxy Cluster, it is about 30 million light years from the Milky Way.
It was discovered by Wilhelm Herschel on February 2, 1786 with an 18.7-inch reflector telescope, which found it to be matt, quite large and a little lighter towards the center ( faint, pretty large, a little brighter in the middle , “F. , pL., lbM. ”).