NGC 5012
Galaxy in the constellation Coma Berenices
From Wikipedia, the free encyclopedia
NGC 5012 is an intermediate spiral galaxy in the constellation of Coma Berenices. Its velocity with respect to the cosmic microwave background is 2,883±19 km/s, which corresponds to a Hubble distance of 138.7 ± 9.8 Mly (42.52 ± 2.99 Mpc).[1] However, 17 non-redshift measurements give a closer mean distance of 122.14 ± 4.22 Mly (37.447 ± 1.295 Mpc).[2] It was discovered by German-British astronomer William Herschel on 10 April 1785.[3][4]
Right ascension13h 11m 37.0480s[1]
Declination+22° 54′ 56.219″[1]
| NGC 5012 | |
|---|---|
NGC 5012 imaged by SDSS | |
| Observation data (J2000 epoch) | |
| Constellation | Coma Berenices |
| Right ascension | 13h 11m 37.0480s[1] |
| Declination | +22° 54′ 56.219″[1] |
| Redshift | 0.008694±0.00000638[1] |
| Heliocentric radial velocity | 2,606±2 km/s[1] |
| Distance | 122.14 ± 4.22 Mly (37.447 ± 1.295 Mpc)[1] |
| Group or cluster | NGC 5012 group (LGG 336) |
| Apparent magnitude (V) | 12.8g[1] |
| Characteristics | |
| Type | SAB(rs)c[1] |
| Size | ~105,200 ly (32.26 kpc) (estimated)[1] |
| Apparent size (V) | 2.90′ × 1.02′[1] |
| Other designations | |
| IRAS 13091+2310, 2MASX J13113705+2254556, UGC 8270, MCG +04-31-012, PGC 45795, CGCG 130-016[1] | |
NGC 5012 is a LINER galaxy, i.e. a galaxy whose nucleus has an emission spectrum characterized by broad lines of weakly ionized atoms.[5][6]
NGC 5012 group
Supernovae
Two supernovae have been observed in NGC 5012:
- SN 1997eg (Type IIn, mag. 15.6) was discovered by Japanese amateur astronomer Masakatsu Aoki on 4 December 1997.[9][10]
- SN 2020kyg (Type Iax[02cx-like], mag. 19.79) was discovered by ATLAS on 24 May 2020.[11]
