IC 273
| Galaxy  IC 273  | 
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|---|---|
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| IC 273 | |
| AladinLite | |
| Constellation | whale | 
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Position  equinox : J2000.0 , epoch : J2000.0  | 
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| Right ascension | 02 h 57 m 10.78 s | 
| declination | + 02 ° 46 ′ 30.2 ″ | 
| Appearance | |
| Morphological type | SBa: | 
| Brightness (visual) | 13.4 mag | 
| Brightness (B-band) | 14.3 mag | 
| Angular expansion | 1.5 ′ × 0.5 ′ | 
| Position angle | 31 ° | 
| Surface brightness | 12.9 mag / arcmin² | 
| Physical data | |
| Affiliation | NGC 1137 group  LGG 79  | 
| Redshift | 0.010634 ± 0.000027 | 
| Radial velocity | 3188 ± 8 km / s | 
| 
Stroke distance  v rad / H 0  | 
(143 ± 10)  ·  10 6  ly (43.8 ± 3.1) Mpc  | 
| history | |
| discovery | Stéphane Javelle | 
| Discovery date | January 6, 1894 | 
| Catalog names | |
| IC 273 • UGC 2425 • PGC 11156 • CGCG 389-052 • MCG + 00-08-052 • IRAS 02546 + 0234 • 2MASX J02571077 + 0246302 • GALEX ASC J025710.78 + 024633.4 • LDCE 212 NED002 • NVSS J025710 + 024625 | |
IC 273 is a lenticular galaxy of the Hubble type SB0 / a in the constellation Whale south of the ecliptic . It is an estimated 143 million light years from the Milky Way and is approximately 60,000 light years in diameter. Together with four other galaxies, it forms the NGC 1137 group ( LGG 79 ).
In the same area of the sky are u. a. the galaxies NGC 1153 and IC 277 .
The object was discovered by Stéphane Javelle on January 6, 1894 .