NGC 3172
NGC 3172 (also known as Polarissima Borealis[1]) is a 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.[2]
| NGC 3172 | |
|---|---|
 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 | |
| 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 | |
A Type Ia supernova, 2010af, was discovered in NGC 3172 in March, 2010.[3]
See Also
- NGC 2573 - the closest NGC object to the South Celestial Pole.
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References
- SIMBAD:%20NGC%203054%20--%20Galaxy "NGC 3172". sim-id. Retrieved 2020-05-29.
- "New General Catalog Objects: NGC 3150 - 3199". cseligman.com. Retrieved 2020-05-30.
- "Bright Supernovae - 2010". www.rochesterastronomy.org. Retrieved 2020-05-30.
External links
- SIMBAD: NGC 3054 -- Galaxy
- NGC 3172 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
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