NGC 284
| Galaxy NGC 284 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | whale |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 00 h 53 m 24.3 s |
| declination | -13 ° 09 ′ 32 ″ |
| Appearance | |
| Morphological type | E. |
| Brightness (visual) | 14.4 mag |
| Brightness (B-band) | 15.4 mag |
| Angular expansion | 0.6 ′ × 0.5 ′ |
| Position angle | 4 ° |
| Surface brightness | 13.2 mag / arcmin² |
| Physical data | |
| Redshift | 0.038460 ± 0.000120 |
| Radial velocity | 11,530 ± 36 km / s |
|
Stroke distance v rad / H 0 |
(517 ± 36) · 10 6 ly (158.5 ± 11.1) Mpc |
| history | |
| discovery | Francis P. Leavenworth |
| Discovery date | October 2, 1886 |
| Catalog names | |
| NGC 284 • PGC 3132 • MCG -02-03-033 • 2MASX J00532423-1309321 • GALEX ASC J005324.21-130932.9 • USGC S031 NED02 | |
NGC 284 is an elliptical galaxy from the Hubble type E2 in the constellation Cetus south of the ecliptic . It is estimated to be 517 million light years from the Milky Way and about 90,000 light years in diameter.
The galaxies NGC 283 , NGC 285 , NGC 286 , IC 56 are located in the same area of the sky .
The object was discovered on October 2, 1886 by the American astronomer Francis Preserved Leavenworth .