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Spiral galaxy in the constellation Libra From Wikipedia, the free encyclopedia
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]
NGC 5917 | |
---|---|
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] |
A supernova was observed in NGC 5917, designated SN 1990Q. It was discovered on June 24, 1990 and reached magnitude 18.[9] This was identified as a type II supernova based on the spectrum.[10]
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