NGC 621
| Galaxy NGC 621 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | triangle |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 01 h 36 m 49.0 s |
| declination | + 35 ° 30 ′ 44 ″ |
| Appearance | |
| Morphological type | SB0 |
| Brightness (visual) | 12.8 mag |
| Brightness (B-band) | 13.8 mag |
| Angular expansion | 1.2 ′ × 1 ′ |
| Position angle | 24 ° |
| Surface brightness | 12.8 mag / arcmin² |
| Physical data | |
| Redshift | 0.017219 +/- 0.000067 |
| Radial velocity | 5162 +/- 20 km / s |
|
Stroke distance v rad / H 0 |
(237 ± 17) · 10 6 ly (72.7 ± 5.1) Mpc |
| history | |
| discovery | Édouard Jean-Marie Stephan |
| Discovery date | November 24, 1883 |
| Catalog names | |
| NGC 621 • UGC 1147 • PGC 5984 • CGCG 521-055 • MCG + 06-04-45 • 2MASX J01364904 + 353044 • IVZW 54 • LDCE 0074 NED093 | |
NGC 621 is a lenticular galaxy in the Triangle constellation , about 237 million light years from the Milky Way .
The object was discovered on November 24, 1883 by the French astronomer Édouard Jean-Marie Stephan .
Web links
- SIMBAD Astronomical Database
- Auke Slotegraaf: NGC 621. Deep Sky Observer's Companion, accessed September 1, 2015 .