NGC 4545
Galaxy in the constellation Draco
From Wikipedia, the free encyclopedia
NGC 4545 is a barred spiral galaxy in the constellation of Draco. Its velocity with respect to the cosmic microwave background is 2,850±8 km/s, which corresponds to a Hubble distance of 137.1 ± 9.6 Mly (42.04 ± 2.95 Mpc).[1] However, 19 non-redshift measurements give a closer mean distance of 118.22 ± 5.34 Mly (36.247 ± 1.637 Mpc).[2] It was discovered by German-British astronomer William Herschel on 20 March 1790.[3]
Right ascension12h 34m 34.1587s[1]
Declination+63° 31′ 30.63″[1]
| NGC 4545 | |
|---|---|
NGC 4545 imaged by SDSS | |
| Observation data (J2000 epoch) | |
| Constellation | Draco |
| Right ascension | 12h 34m 34.1587s[1] |
| Declination | +63° 31′ 30.63″[1] |
| Redshift | 0.009130[1] |
| Heliocentric radial velocity | 2,737±2 km/s[1] |
| Distance | 137.1 ± 9.6 Mly (42.04 ± 2.95 Mpc)[1] |
| Group or cluster | NGC 4545 Group (LGG 295) |
| Apparent magnitude (V) | 12.3[1] |
| Characteristics | |
| Type | SB(s)cd?[1] |
| Size | ~99,700 ly (30.58 kpc) (estimated)[1] |
| Apparent size (V) | 2.5′ × 1.5′[1] |
| Other designations | |
| IRAS 12323+6348, UGC 7747, MCG +11-15-064, PGC 41838, CGCG 315-047[1] | |
