IC 531
| Galaxy IC 531 |
|
|---|---|
|
|
| SDSS recording | |
| AladinLite | |
| Constellation | Water snake |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 09 h 17 m 50.8 s |
| declination | -00 ° 16 ′ 43 ″ |
| Appearance | |
| Morphological type | (R ') SB (rs) from? / HII |
| Brightness (visual) | 13.9 likes |
| Brightness (B-band) | 14.7 mag |
| Angular expansion | 1.7 ′ × 0.5 ′ |
| Position angle | 60 ° |
| Surface brightness | 13.6 mag / arcmin² |
| Physical data | |
| Redshift | 0.017455 ± 0.000027 |
| Radial velocity | 5233 ± 8 km / s |
|
Stroke distance v rad / H 0 |
(227 ± 16) x 10 6 ly (69.5 ± 4.9) Mpc |
| history | |
| discovery | Stéphane Javelle |
| Discovery date | March 9, 1893 |
| Catalog names | |
| IC 531 • UGC 4923 • PGC 26258 • CGCG 006-028 • MCG + 00-24-006 • IRAS 09152-0004 • 2MASX J09175079-0016418 • GALEX ASC J091750.90-001641.4 | |
IC 531 is a bar-spiral galaxy with extensive star formation areas of the Hubble type SBab in the constellation Hydra south of the celestial equator . It is estimated to be 227 million light years from the Milky Way and about 115,000 light years in diameter.
The object was discovered by Stéphane Javelle on March 9, 1893 .