NGC 2545
Galaxy in the constellation Cancer
From Wikipedia, the free encyclopedia
NGC 2545 is a barred spiral galaxy in the constellation of Cancer. Its velocity with respect to the cosmic microwave background is 3,613±16 km/s, which corresponds to a Hubble distance of 173.8 ± 12.2 Mly (53.29 ± 3.74 Mpc).[1] Additionally, 15 non-redshift measurements give a closer distance of 158.97 ± 11.44 Mly (48.740 ± 3.507 Mpc).[2] It was discovered by German-British astronomer William Herschel on 11 January 1787.[3][4]
| NGC 2545 | |
|---|---|
NGC 2545 imaged by SDSS | |
| Observation data (J2000 epoch) | |
| Constellation | Cancer |
| Right ascension | 08h 14m 14.1505s[1] |
| Declination | +21° 21′ 19.658″[1] |
| Redshift | 0.011291±0.00000900[1] |
| Heliocentric radial velocity | 3,385±3 km/s[1] |
| Distance | 158.97 ± 11.44 Mly (48.740 ± 3.507 Mpc)[2] |
| Group or cluster | NGC 2545 Group (LGG 156) |
| Apparent magnitude (V) | 13.4g[1] |
| Characteristics | |
| Type | (R)SB(r)ab[1] |
| Size | ~115,600 ly (35.44 kpc) (estimated)[1] |
| Apparent size (V) | 1.23′ × 1.09′[1] |
| Other designations | |
| IRAS 08113+2130, 2MASX J08141413+2121198, UGC 4287, MCG +04-20-007, PGC 23086, CGCG 119-016[1] | |
NGC 2545 has an 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.[5][6] It is also a LINER galaxy, i.e. a galaxy whose nucleus has an emission spectrum characterized by broad lines of weakly ionized atoms.[1]
NGC 2545 group
Supernova
One supernova has been observed in NGC 2545:
- SN 2008hn (Type Ic, mag. 18.4) was discovered by the Lick Observatory Supernova Search (LOSS) on 25 November 2008.[9][10]