| NGC 4020 | |
|---|---|
 | |
| Observation data (J2000.0 epoch) | |
| Constellation | Ursa Major |
| Right ascension | 11h 58m 56,8s [1] |
| Declination | +30° 24′ 49″ |
| Redshift | 0.002535 [2] |
| Distance | 40.7 million LY [2] |
| Apparent magnitude (V) | 13.10 [3] |
| Characteristics | |
| Apparent size (V) | 1.90 x 1.0 [1] |
| Other designations | |
| UGC 06971, CGCG 157-072, CGCG 1156.3+3041, MCG +05-28-066 [4] | |
NGC 4020 is a spiral galaxy in the constellation Ursa Major. It's classified as a type SAcd galaxy. [5] The galaxy was first discovered in 1788 by astronomer William Herschel and again in 1831 by John Herschel. [6] It's around 22,500 light years across at its longest diameter. [2] Its radical velocity, relative to the cosmic microwave background is measured around 1048 ± 20 km/s, and a Hubble distance of around 15.46 ± 1.12 Mpc. [4]
