Astronomy:NGC 3172
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Short description: Galaxy in the constellation Ursa Minor
| 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
- NGC 2573 - the closest NGC object to the south celestial pole.
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 SIMBAD:%20NGC%203054%20--%20Galaxy "NGC 3172". http://simbad.u-strasbg.fr/simbad/sim-id?Ident=%40331138&Name=NGC++3172&submit=display+all+measurements#lab_meas%20SIMBAD:%20NGC%203054%20--%20Galaxy.
- ↑ "Search specification: NGC 3172". HyperLeda. Université Claude Bernard Lyon 1. http://leda.univ-lyon1.fr/ledacat.cgi?o=NGC%203172. Retrieved 2021-02-24.
- ↑ "New General Catalog Objects: NGC 3150 - 3199". https://cseligman.com/text/atlas/ngc31a.htm#3172.
- ↑ "Bright Supernovae - 2010.". http://www.rochesterastronomy.org/sn2010/index.html#2010af.
- ↑ Transient Name Server entry for SN 2017gla. Retrieved 24 March 2023.
External links
- SIMBAD: NGC 3054 -- Galaxy
- NGC 3172 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
Coordinates: 
11h 47m 11.928s, +89° 05′ 35.77″
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