NGC 3172
Appearance
NGC 3172 | |
---|---|
![]() Pan-STARRS image of NGC 3172 | |
Observation data (J2000 epoch) | |
Constellation | Ursa Minor |
Right ascension | 11h 47m 11.928s[1] |
Declination | 89° 05′ 35.77″[1] |
Apparent magnitude (V) | 14.9[1] |
Characteristics | |
Type | S0[2] |
Apparent size (V) | 0.92′ × 0.79′[1] |
Notable features | Closest NGC object to the north celestial pole. |
Other designations | |
NGC 3172, PGC 36847, MCG 15-1-11 |
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.[3]
Two supernovae have been observed in NGC 3172. SN 2010af (type Ia, mag. 17.2), was discovered on 4 March, 2010.[4] SN 2017gla (type Ia, mag. 16), was discovered on 1 September, 2017.[5]
See also
[edit]- NGC 2573 - the closest NGC object to the south celestial pole.
References
[edit]- ^ a b c d e f SIMBAD: NGC 3054 -- Galaxy "NGC 3172". sim-id. Retrieved 2020-05-29.
- ^ "Search specification: NGC 3172". HyperLeda. Université Claude Bernard Lyon 1. Retrieved 2021-02-24.
- ^ "New General Catalog Objects: NGC 3150 - 3199". cseligman.com. Retrieved 2020-05-30.
- ^ "Bright Supernovae - 2010". www.rochesterastronomy.org. Retrieved 2020-05-30.
- ^ Transient Name Server entry for SN 2017gla. Retrieved 24 March 2023.
External links
[edit]- SIMBAD: NGC 3054 -- Galaxy
- NGC 3172 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images