NGC 653
| Galaxy NGC 653 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | Andromeda |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 01 h 42 m 25.7 s |
| declination | + 35 ° 38 ′ 18 ″ |
| Appearance | |
| Morphological type | Sab |
| Brightness (visual) | 13.5 likes |
| Brightness (B-band) | 14.3 mag |
| Angular expansion | 1.5 ′ × 0.2 ′ |
| Position angle | 39 ° |
| Surface brightness | 12.0 mag / arcmin² |
| Physical data | |
| Redshift | 0.018239 ± 0.000047 |
| Radial velocity | 5468 ± 14 km / s |
|
Stroke distance v rad / H 0 |
(250 ± 18) x 10 6 ly (76.8 ± 5.4) Mpc |
| history | |
| discovery | Édouard Stephan |
| Discovery date | November 29, 1883 |
| Catalog names | |
| NGC 653 • UGC 1193 • PGC 6290 • CGCG 521-070 • MCG + 06-04-058 • 2MASX J01422571 + 3538180 • GALEX ASC J014225.84 + 353819.0 • LDCE 74 NED097 | |
NGC 653 is a spiral galaxy of Hubble type Sab in the constellation Andromeda on the northern sky . It is estimated to be 250 million light-years from the Milky Way and about 110,000 light years in diameter.
The object was discovered on November 29, 1883 by the French astronomer Édouard Jean-Marie Stephan .
Web links
- SIMBAD Astronomical Database
- Auke Slotegraaf: NGC 653. Deep Sky Observer's Companion, accessed September 7, 2015 .