NGC 2221
| Galaxy NGC 2221 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | painter |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 06 h 20 m 15.7 s |
| declination | -57 ° 34 ′ 42 ″ |
| Appearance | |
| Morphological type | Sa? / pec / sp |
| Brightness (visual) | 13.0 likes |
| Brightness (B-band) | 13.9 likes |
| Angular expansion | 2 ′ × 0.5 ′ |
| Position angle | 0 ° |
| Surface brightness | 12.9 mag / arcmin² |
| Physical data | |
| Redshift | 0.008446 ± 0.000117 |
| Radial velocity | 2532 ± 35 km / s |
|
Stroke distance v rad / H 0 |
(104 ± 8) · 10 6 ly (31.8 ± 2.3) Mpc |
| history | |
| discovery | John Herschel |
| Discovery date | 4th December 1834 |
| Catalog names | |
| NGC 2221 • PGC 18833 • ESO 121-024 • IRAS 06194-5733 • 2MASX J06201571-5734423 • SGC 061926-5733.2 • SUMSS J062015-573437 | |
NGC 2221 is a spiral galaxy of Hubble type Sa in the constellation Painter at the southern sky . It is an estimated 104 million light years away from the Milky Way and has a diameter of about 65,000 ly. Together with NGC 2222 , it forms a gravitationally bound galaxy pair.
The object was discovered by John Herschel on December 4, 1834 .