NGC 3172

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NGC 3172
NGC 3172 PanS.jpg
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 featuresClosest 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]

Contents

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

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References

  1. 1 2 3 4 5 6 SIMBAD:%20NGC%203054%20--%20Galaxy "NGC 3172". sim-id. Retrieved 2020-05-29.
  2. "Search specification: NGC 3172". HyperLeda. Université Claude Bernard Lyon 1. Retrieved 2021-02-24.
  3. "New General Catalog Objects: NGC 3150 - 3199". cseligman.com. Retrieved 2020-05-30.
  4. "Bright Supernovae - 2010". www.rochesterastronomy.org. Retrieved 2020-05-30.
  5. Transient Name Server entry for SN 2017gla. Retrieved 24 March 2023.