| NGC 931 | |
|---|---|
 NGC 931 by Hubble Space Telescope | |
| Observation data (J2000 epoch) | |
| Constellation | Triangulum |
| Right ascension | 02h 28m 14.5s[1] |
| Declination | +31° 18′ 42″[1] |
| Redshift | 0.016652 ± 0.000020 [1] |
| Heliocentric radial velocity | 4,992 ± 6 km/s[1] |
| Distance | 159 ± 30 Mly (48.7 ± 9.3 Mpc)[1] |
| Apparent magnitude (V) | 13.5 [2] |
| Characteristics | |
| Type | Sbc [1] |
| Apparent size (V) | 3.9′ × 0.8′ [1] |
| Notable features | Seyfert galaxy |
| Other designations | |
| UGC 1935, Mrk 1040, KUG 0225+310, CGCG 504-089, MCG +05-06-049, PGC 9399[1] | |
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NGC 931 is a spiral galaxy located in the constellation Triangulum. It is located at a distance of circa 200 million light-years from Earth, which, given its apparent dimensions, means that NGC 931 is about 200,000 light years across. It was discovered by Heinrich d'Arrest on September 26, 1865.[3] It is classified as a Seyfert galaxy.
- ^ a b c d e f g h "NASA/IPAC Extragalactic Database". Results for NGC 931. Retrieved 2019-01-18.
- ^ "Revised NGC Data for NGC 931". spider.seds.org. Retrieved 25 November 2018.
- ^ Seligman, Courtney. "NGC 931 (= PGC 9399)". Celestial Atlas. Retrieved 19 November 2018.