NGC 3917
Galaxy NGC 3917 |
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SDSS recording | |
AladinLite | |
Constellation | Big Bear |
Position equinox : J2000.0 , epoch : J2000.0 |
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Right ascension | 11 h 51 m 45.4 s |
declination | + 51 ° 49 ′ 29 ″ |
Appearance | |
Morphological type | SAcd:; LINER / HII |
Brightness (visual) | 11.8 mag |
Brightness (B-band) | 12.5 mag |
Angular expansion | 5 ′ × 1.1 ′ |
Position angle | 77 ° |
Surface brightness | 13.5 mag / arcmin² |
Physical data | |
Affiliation | LGG 258 |
Redshift | 0.003218 +/- 0.000005 |
Radial velocity | 965 +/- 1 km / s |
Stroke distance v rad / H 0 |
(46 ± 3) · 10 6 ly (14.1 ± 1.0) Mpc |
history | |
discovery | Wilhelm Herschel |
Discovery date | March 17, 1790 |
Catalog names | |
NGC 3917 • UGC 6815 • PGC 37036 • CGCG 268-093 / 269-005 • MCG + 09-20-008 • IRAS 11481 + 5206 • 2MASX J11504548 + 5149271 • GC 2579, GC 2583 • H II 824 • h 994 • LDCE 0867 NED040 |
NGC 3917 is a spiral galaxy of Hubble type Sc in the constellation Ursa Major at the northern sky . It is estimated to be 46 million light years from the Milky Way .
The object was discovered on March 17, 1790 by the astronomer Wilhelm Herschel .