NGC 5793
Spiral galaxy in the constellation Libra
From Wikipedia, the free encyclopedia
NGC 5793 is an active spiral galaxy located approximately 150 million light years away in the constellation Libra. It is classified as a Type 2 Seyfert galaxy[4] and was discovered by Francis Leavenworth in 1886.[1][7] The galactic plane is inclined at an angle of 73°, giving it an oval, nearly edge-on appearance with the major axis aligned along a position angle of 150°.[4]
| NGC 5793 | |
|---|---|
Hubble Space Telescope image of NGC 5793[1] | |
| Observation data (J2000 epoch) | |
| Constellation | Libra |
| Right ascension | 14h 59m 24.807s[2] |
| Declination | −16° 41′ 36.55″[2] |
| Redshift | 0.011645[3] |
| Heliocentric radial velocity | 3,442±72 km/s[4] |
| Distance | 150 Mly (46 Mpc)[4] |
| Apparent magnitude (V) | 13.32[5] |
| Apparent magnitude (B) | 14.47[5] |
| Characteristics | |
| Type | Sb, Seyfert 2e[4] |
| Apparent size (V) | 1.160′ × 0.394′[2] (NIR) |
| Other designations | |
| 2MASX J14592480-1641365, NGC 5793, LEDA 49264[6] | |
Seyfert galaxies such as NGC 5793 are known to house megamasers. Megamasers can have a luminosity of thousands of times greater than the Sun.[1] Neutral hydrogen has been detected against the galactic nucleus. This means that NGC 5793 has an estimated HI cloud size of ≈15 pc and an estimated atomic gas density of ≈200 cm -3.[8]
