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| NGC 3393 | |
|---|---|
 NGC 3393 by Hubble Space Telescope | |
| Observation data (J2000 epoch) | |
| Constellation | Hydra |
| Right ascension | 10h 48m 23.5s[1] |
| Declination | −25° 09′ 43″[1] |
| Redshift | 0.012509 ± 0.000017 [1] |
| Heliocentric radial velocity | 3,750 ± 5 km/s[1] |
| Distance | 181 Mly (56 Mpc)[1] |
| Apparent magnitude (V) | 13.1 |
| Characteristics | |
| Type | (R')SB(s)ab [1] |
| Apparent size (V) | 2.2′ × 2.0′[1] |
| Notable features | Seyfert galaxy Hosts a pair of supermassive black holes |
| Other designations | |
| ESO 501-G100, MCG -04-26-011, AM 1045-245, PGC 32300[1] | |
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NGC 3393 is a barred spiral galaxy located in the constellation Hydra. It is located at a distance of circa 180 million light-years from Earth, which, given its apparent dimensions, means that NGC 3393 is about 140,000 light-years across. It was discovered by John Herschel on March 24, 1835.[2] It is a Type II Seyfert galaxy, known to host two supermassive black holes, which are the nearest known pair of supermassive black holes to Earth.[3]