IC 284
| Galaxy IC 284 |
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|---|---|
![IC 284 with PGC 11646 [1]](https://de.wikipedia.org/wiki/Datei:IC284_-_SDSS_DR14.jpg)
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| IC 284 with PGC 11646 | |
| AladinLite | |
| Constellation | Perseus |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 03 h 06 m 09.9 s |
| declination | + 42 ° 22 ′ 19 ″ |
| Appearance | |
| Morphological type | SAdm |
| Brightness (visual) | 12.0 mag |
| Brightness (B-band) | 12.6 mag |
| Angular expansion | 3.8 ′ × 1.2 ′ |
| Position angle | 13 ° |
| Surface brightness | 13.5 mag / arcmin² |
| Physical data | |
| Affiliation | NGC 1186 group LGG 82 |
| Redshift | 0.009083 ± 0.000020 |
| Radial velocity | 2723 ± 6 km / s |
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Stroke distance v rad / H 0 |
(127 ± 9) · 10 6 ly (38.8 ± 2.7) Mpc |
| history | |
| discovery | Lewis Swift |
| Discovery date | October 27, 1888 |
| Catalog names | |
| IC 284 • UGC 2531 • PGC 11643 • CGCG 540-037 • MCG + 07-07-023 • IRAS 03029 + 4211 • 2MASX J03060989 + 4222189 • LDCE 224 NED110 | |
IC 284 is a spiral galaxy of Hubble type SD in the constellation Perseus in the northern sky . It is estimated to be 127 million light years from the Milky Way and about 140,000 light years in diameter. Together with NGC 1171 and NGC 1186 , it forms the NGC 1186 group .
In the same area of the sky are u. a. the galaxies NGC 1174 , NGC 1175 , NGC 1177 , IC 288 .
The object was discovered by Lewis Swift on October 27, 1888 .