NGC 3172
Galaxy in the constellation Ursa Minor
From Wikipedia, the free encyclopedia
NGC 3172 (also known as Polarissima Borealis[1]) is a lenticular galaxy located in the constellation Ursa Minor. It is the closest NGC object to the north celestial pole.[1] Discovered by John Herschel in 1831, it is about 285 million light-years away and about 85 thousand light-years across.[4]
Right ascension11h 47m 11.928s[1]
Declination+89° 05′ 35.77″[1]
| NGC 3172 | |
|---|---|
NGC 3172 imaged by Pan-STARRS | |
| Observation data (J2000 epoch) | |
| Constellation | Ursa Minor |
| Right ascension | 11h 47m 11.928s[1] |
| Declination | +89° 05′ 35.77″[1] |
| Redshift | 0.020334±0.0000970[2] |
| Heliocentric radial velocity | 6,096±29 km/s[2] |
| Distance | 291.4 ± 20.5 Mly (89.33 ± 6.28 Mpc)[2] |
| Apparent magnitude (V) | 14.9[1] |
| Characteristics | |
| Type | S0[3] |
| Apparent size (V) | 0.92′ × 0.79′[1] |
| Notable features | Closest NGC object to the north celestial pole |
| Other designations | |
| MCG +15-01-011, PGC 36847, CGCG 370-002[2] | |
Supernovae
See also
- NGC 2573 - the closest NGC object to the south celestial pole.
- List of NGC objects (3001–4000)
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