NGC 5917
Spiral galaxy in the constellation Libra
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NGC 5917 is a spiral galaxy located in the constellation of Libra. It was discovered by English astronomer John Herschel on 16 July 1835.[8] This galaxy is located at a distance of 90.4 ± 6.2 million light-years (27.73 ± 1.90 Mpc) from the Milky Way,[3] and is receding with a heliocentric radial velocity of 1,934.1 km/s.[4] It is interacting with the neighboring galaxy, PGC 54817, at an angular separation of 4.2′. Tidal tails extend from PGC 54817 to the halo of NGC 5917.[5]
Right ascension15h 21m 32.550s[2]
Declination−07° 22′ 37.52″[2]
| NGC 5917 | |
|---|---|
 NGC 5917 imaged by the Hubble Space Telescope | |
| Observation data (J2000 epoch) | |
| Constellation | Libra[1] |
| Right ascension | 15h 21m 32.550s[2] |
| Declination | −07° 22′ 37.52″[2] |
| Redshift | 0.00635[3] |
| Heliocentric radial velocity | 1,934.1[4] |
| Distance | 90.4 ± 6.2 Mly (27.73 ± 1.90 Mpc)[3] |
| Apparent magnitude (V) | 14.5[5] |
| Apparent magnitude (B) | 13.7[3] |
| Characteristics | |
| Type | Sb pec:[5] |
| Apparent size (V) | 1.60′ × 0.9′[6] |
| Notable features | Interacting galaxy |
| Other designations | |
| GSC 05014-00224, IRAS F15188-0711, 2MASX J15213256-0722376, NGC 5917, LEDA 54809, MCG -01-39-002, PGC 54809[7] | |
One supernova has been observed in NGC 5917. SN 1990Q (type II, mag. 18) was discovered by Christian Pollas on 24 June 1990.[9][10][11]
