NGC 2755
| Galaxy NGC 2755 |
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|---|---|
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| SDSS recording | |
| AladinLite | |
| Constellation | lynx |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 09 h 07 m 58.3 s |
| declination | + 41 ° 42 ′ 32 ″ |
| Appearance | |
| Morphological type | Sb |
| Brightness (visual) | 13.4 mag |
| Brightness (B-band) | 14.2 mag |
| Angular expansion | 1.2 ′ × 0.8 ′ |
| Position angle | 130 ° |
| Surface brightness | 13.2 mag / arcmin² |
| Physical data | |
| Redshift | 0.025162 ± 0.000101 |
| Radial velocity | (7543 ± 30) km / s |
|
Stroke distance v rad / H 0 |
(337 ± 23) · 10 6 ly (103.3 ± 7.2) Mpc |
| history | |
| discovery | William Herschel |
| Discovery date | March 18, 1787 |
| Catalog names | |
| NGC 2755 • UGC 4789 • PGC 25670 • CGCG 209-030 • MCG + 07-19-034 • IRAS 09047 + 4154 • 2MASX J09075831 + 4142324 • GC 1758 • H III 626 • NVSS J090758 + 414232 | |
NGC 2755 is a spiral radio galaxy of the Hubble type Sb in the constellation Lynx in the northern sky . It is estimated to be 237 million light years from the Milky Way and about 120,000 light years in diameter.
The Type II supernova SN 2012ai was observed here.
The object was discovered on March 18, 1787 by the astronomer William Herschel .