NGC 5082
Galaxy in the constellation Centaurus
From Wikipedia, the free encyclopedia
NGC 5082 is a lenticular galaxy in the constellation of Centaurus. Its velocity with respect to the cosmic microwave background is 4,153±46 km/s, which corresponds to a Hubble distance of 199.8 ± 14.3 Mly (61.25 ± 4.38 Mpc).[1] However, three non-redshift measurements give a closer mean distance of 152.97 ± 3.46 Mly (46.900 ± 1.060 Mpc).[2] It was discovered by British astronomer John Herschel on 3 June 1834.[3]
| NGC 5082 | |
|---|---|
NGC 5082 imaged by DSS | |
| Observation data (J2000 epoch) | |
| Constellation | Centaurus |
| Right ascension | 13h 20m 40.0345s[1] |
| Declination | −43° 41′ 59.799″[1] |
| Redshift | 0.012996±0.000140[1] |
| Heliocentric radial velocity | 3,896±42 km/s[1] |
| Distance | 152.97 ± 3.46 Mly (46.900 ± 1.060 Mpc)[1] |
| Group or cluster | NGC 5082 group (LGG 348) |
| Apparent magnitude (V) | 13.75[1] |
| Characteristics | |
| Type | SB0^0(rs)[1] |
| Size | ~112,300 ly (34.42 kpc) (estimated)[1] |
| Apparent size (V) | 1.7′ × 1.0′[1] |
| Other designations | |
| ESO 269- G 089, 2MASX J13204003-4341598, MCG -07-27-053, PGC 46566[1] | |
NGC 5082 has a possible active galactic nucleus, i.e. it has a compact region at the center of a galaxy that emits a significant amount of energy across the electromagnetic spectrum, with characteristics indicating that this luminosity is not produced by the stars.[4][5]
NGC 5082 group
NGC 5082 is a member of a small group of galaxies named after it. The other two galaxies in the NGC 5082 group (also known as LGG 348) are ESO 270-7 and ESO 270-14.[6][7]
Supernova
One supernova has been observed in NGC 5082:
- SN 1958F (type unknown, mag. 16) was discovered by Milton L. Humason on 13 June 1958.[8][9]