NGC 4997
| Galaxy NGC 4997 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | Virgin |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 13 h 09 m 51.7 s |
| declination | -16 ° 30 ′ 56 ″ |
| Appearance | |
| Morphological type | S0- |
| Brightness (visual) | 12.9 mag |
| Brightness (B-band) | 13.9 likes |
| Angular expansion | 1.4 ′ × 0.9 ′ |
| Position angle | 94 ° |
| Surface brightness | 13.2 mag / arcmin² |
| Physical data | |
| Redshift | 0.007925 ± 0.000060 |
| Radial velocity | 2376 ± 18 km / s |
|
Stroke distance v rad / H 0 |
(101 ± 7) x 10 6 ly (31.0 ± 2.2) Mpc |
| history | |
| discovery | Sherburne Burnham |
| Discovery date | March 28, 1878 |
| Catalog names | |
| NGC 4997 • PGC 45667 • MCG -03-34-005 • 2MASX J13095347-1631018 • | |
NGC 4997 is a 12.9 likes bright lenticular galaxy of Hubble type e-S0 in the constellation Virgo the northern sky . It is estimated to be 101 million light years from the Milky Way .
The object was discovered on March 28, 1878 by Sherburne Wesley Burnham .
Web links
- NGC 4997. SIMBAD, accessed February 24, 2015 .
- NGC 4997. DSO Browser, accessed February 24, 2015 .
- Auke Slotegraaf: NGC 4997. Deep Sky Observer's Companion, accessed on February 24, 2015 .