NGC 955
| Galaxy NGC 955 |
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|---|---|
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| SDSS recording | |
| AladinLite | |
| Constellation | whale |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 02 h 30 m 33.1 s |
| declination | -01 ° 06 ′ 30 ″ |
| Appearance | |
| Morphological type | Sab |
| Brightness (visual) | 12.0 mag |
| Brightness (B-band) | 12.9 mag |
| Angular expansion | 2.9 ′ × 0.9 ′ |
| Position angle | 19 ° |
| Surface brightness | 12.6 mag / arcmin² |
| Physical data | |
| Redshift | 0.004960 +/- 0.000013 |
| Radial velocity | 1487 +/- 4 km / s |
|
Stroke distance v rad / H 0 |
(67 ± 5) · 10 6 ly (20.6 ± 1.4) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | January 6, 1785 |
| Catalog names | |
| NGC 955 • UGC 1986 • PGC 9549 • CGCG 388-29 • MCG + 00-07-027a • IRAS F02280-0119 • 2MASX J02303311-0106305 • GC 551 • H II 278 • h 229 • 174 NED004 | |
NGC 955 is a spiral galaxy of Hubble type Sab in the constellation Cetus south of the celestial equator . It is estimated to be 67 million light years from the Milky Way and about 60,000 light years across. The galaxies NGC 936 , NGC 941 , IC 234 are located in the same area of the sky .
The object was by astronomer William Herschel using on 6 January 1785 of a 18.7-inch - telescope discovered.