NGC 4920
| Galaxy NGC 4920 / IC 4134 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | Virgin |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 13 h 02 m 04.1 s |
| declination | -11 ° 22 ′ 42 ″ |
| Appearance | |
| Morphological type | IBm |
| Brightness (visual) | 13.5 likes |
| Brightness (B-band) | 14.1 mag |
| Angular expansion | 1 ′ × 0.7 ′ |
| Position angle | 170 ° |
| Surface brightness | 13.0 mag / arcmin² |
| Physical data | |
| Redshift | 0.004456 ± 0.000003 |
| Radial velocity | 1336 ± 1 km / s |
|
Stroke distance v rad / H 0 |
(55 ± 4) · 10 6 ly (16.8 ± 1.2) Mpc |
| history | |
| discovery | Wilhelm Temple |
| Discovery date | 1882 |
| Catalog names | |
| NGC 4920 • IC 4134 • PGC 44958 • MCG -02-33-094 • IRAS F12594-1106 • 2MASX J13020525-1122378 • | |
NGC 4920 is a 13.5 mag bright irregular galaxy of the type "IBm" (the B stands for bar , a central bar ) in the constellation Virgo.
The object was discovered twice: first in 1882 by Ernst Wilhelm Leberecht Tempel (observation listed as NGC 4920 ); then on April 16, 1895 by Guillaume Bigourdan (listed as IC 4134 ).
Web links
- NGC 4920. SIMBAD, accessed February 22, 2015 .
- NGC 4920. DSO Browser, accessed February 22, 2015 .
- Auke Slotegraaf: NGC 4920. Deep Sky Observer's Companion, accessed on February 22, 2015 (English).