NGC 4421
| Galaxy NGC 4421 |
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|---|---|
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| SDSS recording | |
| AladinLite | |
| Constellation | Berenike's hair |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 12 h 27 m 02.5 s |
| declination | + 15 ° 27 ′ 41 ″ |
| Appearance | |
| Morphological type | SB (s) 0 / a |
| Brightness (visual) | 11.5 likes |
| Brightness (B-band) | 12.4 mag |
| Angular expansion | 2.7 ′ × 2 ′ |
| Position angle | 20 ° |
| Surface brightness | 13.2 mag / arcmin² |
| Physical data | |
| Affiliation |
Virgo Galaxy Cluster LGG 289 |
| Redshift | 0.005347 ± 0.000033 |
| Radial velocity | 1603 ± 10 km / s |
|
Stroke distance v rad / H 0 |
(69 ± 5) · 10 6 ly (21.3 ± 1.5) Mpc |
| diameter | 45,000 ly |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | March 21, 1784 |
| Catalog names | |
| NGC 4421 • UGC 7554 • PGC 40785 • CGCG 099-055 • MCG + 03-32-39 • VCC 966 • GC 2981 • H II 89 • h 1264 • LDCE 0904 NED117 | |
NGC 4421 is a lenticular galaxy of type SB0-a in the constellation Haar der Berenike . It is estimated to be 69 million light years from the Milky Way .
The galaxy was discovered by Wilhelm Herschel on March 21, 1784 .