NGC 4581
| Galaxy NGC 4581 |
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|---|---|
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| SDSS recording | |
| AladinLite | |
| Constellation | Virgin |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 12 h 38 m 05.2 s |
| declination | + 01 ° 28 ′ 40 ″ |
| Appearance | |
| Morphological type | E + / cD / Seyfert 2 |
| Brightness (visual) | 12.3 mag |
| Brightness (B-band) | 13.3 mag |
| Angular expansion | 1.9 '× 1.1' |
| Position angle | 173 ° |
| Surface brightness | 13.2 mag / arcmin² |
| Physical data | |
| Affiliation | WBL 416 NGC 4303 -Group LGG 287 |
| Redshift | 0.006064 ± 0.000080 |
| Radial velocity | 1818 ± 24 km / s |
|
Stroke distance v rad / H 0 |
(78 ± 6) · 10 6 ly (23.8 ± 1.7) Mpc |
| history | |
| discovery | Edward S. Holden |
| Discovery date | April 20, 1882 |
| Catalog names | |
| NGC 4581 • UGC 7801 • PGC 42199 • CGCG 014-083 • MCG + 00-32-028 • IRAS F12355 + 0145 • 2MASX J12380513 + 0128404 • GALEX ASC J123805.22 + 012839.0 • LDCE 904 NED207 • EVCC 975 | |
NGC 4581 is an elliptical cD galaxy with an active nucleus of the Hubble type E4 in the constellation Virgo on the ecliptic . It is an estimated 78 million light years from the Milky Way and about 45,000 light years in diameter .
The galaxy NGC 4599 is located in the same area of the sky .
The object was discovered on April 20, 1882 by Edward Singleton Holden .