NGC 274
| Galaxy NGC 274 |
|
|---|---|
|
|
| SDSS image of NGC 274 (top right) and NGC 275 (bottom left) | |
| AladinLite | |
| Constellation | whale |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 00 h 51 m 01.8 s |
| declination | -07 ° 03 ′ 25 ″ |
| Appearance | |
| Morphological type | SAB (r) 0- / pec |
| Brightness (visual) | 11.8 mag |
| Brightness (B-band) | 12.8 mag |
| Angular expansion | 1.4 ′ × 1.2 ′ |
| Position angle | 25 ° |
| Surface brightness | 12.4 mag / arcmin² |
| Physical data | |
| Affiliation | NGC 337 group LGG 15 |
| Redshift | 0.005837 ± 0.000033 |
| Radial velocity | (1750 ± 10) km / s |
|
Stroke distance v rad / H 0 |
(81 ± 6) · 10 6 ly (24.8 ± 1.7) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | September 10, 1785 |
| Catalog names | |
| NGC 274 • PGC 2980 • MCG -01-03-021 • 2MASX J00510187-0703247 • Arp 140 • VV 81 • GC 156 • H III 429 • h 69 • | |
NGC 274 is an elliptical galaxy of Hubble type I / SB0 in the constellation Cetus south of the ecliptic . It is an estimated 81 million light years away from the Milky Way and about 35,000 light years in diameter. Together with NGC 275 , it forms the interacting galaxy pair Arp 140 or Holm 26 .
Halton Arp organized his catalog of unusual galaxies into groups according to purely morphological criteria. This galaxy belongs to the class of elliptical galaxies with emanating material (Arp catalog) . In the same area of the sky are u. a. the galaxies NGC 273 and NGC 293 .
The object was discovered on September 10, 1785 by the German-British astronomer Friedrich Wilhelm Herschel .
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
Web links
Commons : NGC 274 - collection of images, videos, and audio files
Individual evidence