NGC 1633
Galaxy in the constellation Taurus
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NGC 1633 is an intermediate spiral galaxy in the constellation of Taurus. Its velocity with respect to the cosmic microwave background is 4,930±4 km/s, which corresponds to a Hubble distance of 237.1 ± 16.6 Mly (72.71 ± 5.09 Mpc).[1] However, three non-redshift measurements give a closer mean distance of 187.87 ± 5.23 Mly (57.600 ± 1.604 Mpc).[2] It was discovered by German-British astronomer William Herschel on 9 December 1798.[3][4]
Right ascension04h 40m 09.1088s[1]
Declination+07° 20′ 58.172″[1]
| NGC 1633 | |
|---|---|
NGC 1633 and NGC 1634 imaged by Pan-STARRS | |
| Observation data (J2000 epoch) | |
| Constellation | Taurus |
| Right ascension | 04h 40m 09.1088s[1] |
| Declination | +07° 20′ 58.172″[1] |
| Redshift | 0.016632±0.00000700[1] |
| Heliocentric radial velocity | 4,986±2 km/s[1] |
| Distance | 187.87 ± 5.23 Mly (57.600 ± 1.604 Mpc)[1] |
| Group or cluster | NGC 1762 Group (LGG 120) |
| Apparent magnitude (V) | 14.36[1] |
| Characteristics | |
| Type | SAB(s)ab[1] |
| Size | ~68,900 ly (21.14 kpc) (estimated)[1] |
| Apparent size (V) | 1.0′ × 0.9′[1] |
| Other designations | |
| HOLM 079A, IRAS 04374+0715, 2MASX J04400910+0720577, UGC 3125, MCG +01-12-014, PGC 15774, CGCG 419-023[1] | |
NGC 1762 Group
Supernova
One supernova has been observed in NGC 1633:
- SN 2010kg (Type Ia, mag. 18.8) was discovered by the Lick Observatory Supernova Search (LOSS) on 29 November 2010.[7][8]