NGC 4939
Galaxy data from NGC 4939 |
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Photo from the Hubble Space Telescope | |
AladinLite | |
Constellation | Virgin |
Position equinox : J2000.0 , epoch : J2000.0 |
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Right ascension | 13 h 04 m 14.4 s |
declination | -10 ° 20 ′ 23 ″ |
Appearance | |
Morphological type | SA (s) bc / Sy2 |
Brightness (visual) | 11.3 mag |
Brightness (B-band) | 12.1 mag |
Angular expansion | 5.5 ′ × 2.8 ′ |
Position angle | 5 ° |
Surface brightness | 14.1 mag / arcmin² |
Physical data | |
Redshift | 0.010374 ± 0.000013 |
Radial velocity | 3110 ± 4 km / s |
Stroke distance v rad / H 0 |
(134 ± 9) x 10 6 ly (41.2 ± 2.9) Mpc |
history | |
discovery | William Herschel |
Discovery date | March 25, 1786 |
Catalog names | |
NGC 4939 • PGC 45170 • MCG -02-33-104 • IRAS 13016-1004 • 2MASX J13041438-1020225 • GC 3381 • H II 561 • h 3458 • HIPASS J1304-10 |
NGC 4939 is a spiral galaxy with an active nucleus of the Hubble type Sbc and lies in the constellation Virgo on the ecliptic . It is around 134 million light years away from the Milky Way and has a diameter of around 225,000 light years .
The supernovae SN 1968X , SN 1973J , SN 2008aw (Type-II) and SN 2014B (Type-IIP) were observed here.
The object was discovered by William Herschel on March 25, 1786 .
Web links
Commons : NGC 4939 - collection of images, videos, and audio files