NGC 5917
| Galaxy NGC 5917 |
|
|---|---|
|
|
| Photo from the Hubble Space Telescope | |
| AladinLite | |
| Constellation | Libra |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 15 h 21 m 32.6 s |
| declination | -07 ° 22 ′ 38 ″ |
| Appearance | |
| Morphological type | Sb pec? |
| Brightness (visual) | 13.2 mag |
| Brightness (B-band) | 14.0 mag |
| Angular expansion | 1.6 'x 0.9' |
| Position angle | 75 ° |
| Surface brightness | 13.4 mag / arcmin² |
| Physical data | |
| Redshift | 0.006351 ± 0.000120 |
| Radial velocity | (1904 ± 36) km / s |
|
Stroke distance v rad / H 0 |
(85 ± 6) · 10 6 ly (26 ± 1.9) Mpc |
| history | |
| discovery | John Herschel |
| Discovery date | July 16, 1835 |
| Catalog names | |
| NGC 5917 • PGC 54809 • MCG -01-39-002 • IRAS 15188-0711 • Arp 254 • | |
NGC 5917 is a spiral galaxy of type Sb in the constellation Libra . It is around 85 million light years from the Milky Way . Together with PGC 54817 it forms the galaxy pair Arp 254 . Halton Arp organized his catalog of unusual galaxies into groups according to purely morphological criteria. This galaxy belongs to the class galaxies showing signs of splitting .
The galaxy was discovered by John Herschel on July 16, 1835.
Image of the Very Large Telescope of NGC 5917 (top right) and PGC 54817 (below), which gravitationally interact with each other. The pair is labeled Arp 254.
Web links
literature
- Jeff Kanipe and Dennis Webb: The Arp Atlas of Peculiar Galaxies - A Chronicle and Observer's Guide , Richmond 2006, ISBN 978-0-943396-76-7