NGC 1284
| Galaxy NGC 1284 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | Eridanus |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 03 h 17 m 45.5 s |
| declination | -10 ° 17 ′ 21 ″ |
| Appearance | |
| Morphological type | SA0 ^ 0 ^: |
| Brightness (visual) | 13.8 mag |
| Brightness (B-band) | 14.8 mag |
| Angular expansion | 1.3 ′ × 0.9 ′ |
| Position angle | 30 ° |
| Surface brightness | 13.9 mag / arcmin² |
| Physical data | |
| Redshift | 0.029971 ± 0.000130 |
| Radial velocity | 8985 ± 39 km / s |
|
Stroke distance v rad / H 0 |
(400 ± 28) x 10 6 ly (122.5 ± 8.6) Mpc |
| history | |
| discovery | William Herschel |
| Discovery date | December 10, 1798 |
| Catalog names | |
| NGC 1284 • PGC 12247 • MCG -02-09-022 • 2MASX J03174554-1017207 • GC 676 • H III 956 • h 2519 • 2MASS J03174549-1017206 • NVSS J031745-101717 | |
NGC 1284 is a lenticular galaxy of the Hubble type S0 in the constellation Eridanus in the southern sky . It is estimated to be 400 million light years from the Milky Way and about 155,000 light years in diameter.
The object was discovered by Wilhelm Herschel on December 10, 1798 .