NGC 4791
| Galaxy NGC 4791 |
|
|---|---|
|
|
| SDSS recording | |
| AladinLite | |
| Constellation | Virgin |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 12 h 54 m 43.9 s |
| declination | + 08 ° 03 ′ 12 ″ |
| Appearance | |
| Morphological type | S? / LINER |
| Brightness (visual) | 14.1 mag |
| Brightness (B-band) | 14.9 mag |
| Angular expansion | 1.3 ′ × 0.9 ′ |
| Position angle | 70 ° |
| Surface brightness | 14.1 mag / arcmin² |
| Physical data | |
| Redshift | 0.008436 +/- 0.000037 |
| Radial velocity | 2529 +/- 11 km / s |
|
Stroke distance v rad / H 0 |
(111 ± 8) x 10 6 ly (33.9 ± 2.4) Mpc |
| history | |
| discovery | Albert Marth |
| Discovery date | March 25, 1865 |
| Catalog names | |
| NGC 4791 • PGC 43950 • CGCG 043-060 • MCG + 01-33-021 • 2MASX J12544393 + 0803113 • GC 5677 • LEDA 43950 • USGC U507 NED06 | |
NGC 4791 is a spiral galaxy with an active nucleus of the Hubble type S in the constellation Virgo north of the ecliptic . It is estimated to be 111 million light-years away from the Milky Way and has a diameter of about 45,000 ly.
In the same area of the sky there are u. a. the galaxies NGC 4795 , NGC 4796 , NGC 4803 .
The object was discovered by Albert Marth on March 25, 1865 .
Web links
- NGC 4791. SIMBAD, accessed February 13, 2015 .
- NGC 4791. DSO Browser, accessed February 13, 2015 .
- Auke Slotegraaf: NGC 4791. Deep Sky Observer's Companion, accessed on February 13, 2015 .