NGC 2987
| Galaxy NGC 2987 |
|
|---|---|
|
|
| SDSS recording | |
| AladinLite | |
| Constellation | sextant |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 09 h 45 m 41.5 s |
| declination | + 04 ° 56 ′ 31 ″ |
| Appearance | |
| Morphological type | Sab |
| Brightness (visual) | 13.1 mag |
| Brightness (B-band) | 13.9 likes |
| Angular expansion | 1.50 × 0.7 |
| Position angle | 160 ° |
| Surface brightness | 13.0 mag / arcmin² |
| Physical data | |
| Redshift | 0.012482 +/- 0.000030 |
| Radial velocity | (3742 +/- 9) km / s |
|
Stroke distance v rad / H 0 |
(161 ± 11) · 10 6 ly (49.4 ± 3.5) Mpc |
| history | |
| discovery | Édouard Stephan |
| Discovery date | March 25, 1884 |
| Catalog names | |
| NGC 2987 • UGC 05220 • PGC 27981 • MCG + 01-25-017 • IRAS 09430 + 0510 • 2MASX J09454148 + 0456309 • | |
NGC 2987 is a spiral galaxy of Hubble type Sab in the constellation Sextant on the celestial equator . It is estimated to be 161 million light years from the Milky Way and about 75,000 ly in diameter.
The object was discovered on March 25, 1884 by the astronomer Édouard Stephan .