NGC 3091
Galaxy NGC 3091 |
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NGC 3091 with NGC 3096, LEDA 852084 (lu), PGC 28926 (u) & LEDA 28922 (ro) | |
AladinLite | |
Constellation | Water snake |
Position equinox : J2000.0 , epoch : J2000.0 |
|
Right ascension | 10 h 00 m 14.290 s |
declination | -19 ° 38 ′ 13.06 ″ |
Appearance | |
Morphological type | E3: |
Brightness (visual) | 11.2 mag |
Brightness (B-band) | 12.2 mag |
Angular expansion | 3 ′ × 1.9 ′ |
Position angle | 149 ° |
Surface brightness | 13.2 mag / arcmin² |
Physical data | |
Affiliation | HCG 42 NGC 3091 group LGG 186 |
Redshift | 0.013222 ± 0.000033 |
Radial velocity | (3964 ± 10) km / s |
Stroke distance v rad / H 0 |
(168 ± 12) · 10 6 ly (51.6 ± 3.6) Mpc |
history | |
discovery | William Herschel |
Discovery date | February 7, 1785 |
Catalog names | |
NGC 3091 • PGC 28927 • ESO 566-041 • MCG -03-26-007 • 2MASX J10001412-1938113 • SGC 095752-1923.8 • HCG 42A • GC 1992 • H II 293 • h 3215 • GALEX J100014.1-193809 • LDCE 689 NED012 |
NGC 3091 is an elliptical galaxy from the Hubble type E1 in the constellation Hydra south of the ecliptic . It is an estimated 168 million light-years from the Milky Way and about 155,000 light-years across. The galaxy is a member of the Hickson Compact Group HCG 42 and the brightest galaxy in the NGC 3091 group ( LGG 186 ).
In the same area of the sky are u. a. the galaxies NGC 3072 , NGC 3085 , NGC 3096 .
The object was discovered by Wilhelm Herschel on February 7, 1785 .
NGC 3091 group ( LGG 186 )
Galaxy | Alternative name | Distance / million ly |
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NGC 3052 | PGC 28570 | 160 |
NGC 3091 | PGC 28927 | 168 |
NGC 3124 | PGC 29377 | 150 |
PGC 28373 | ESO 566-019 | 157 |
PGC 28922 | MCG-03-26-006 | 170 |
PGC 28926 | 2MASX J10001284-1940203 |