NGC 7647

Last updated
NGC 7647
NGC7647 - SDSS DR14.jpg
Observation data (J2000 epoch)
Constellation Pegasus
Right ascension 23h 25m 15s [1]
Declination +16° 55′ 12″ [1]
Redshift 0.041091 [1]
Heliocentric radial velocity 12,319 km/s [1]
Distance 575 Mly
Characteristics
Type cD;E;BrCIG [1]
Size~315,400  ly (96.70  kpc) (estimated) [1]
Other designations
Abell 2589 [ZAC2011] BCG, GIN 681, PGC 71325, CGCG 0454-063, MCG +03-59-055, PGC 71335 [1]
References: [2]

NGC 7647 is a giant elliptical galaxy of type cD located in the constellation Pegasus. The redshift of the galaxy is (z) 0.041 [1] and it was discovered on November 29, 1785 by the astronomer William Herschel. [3]

Supernova

One supernova has been observed in NGC 7647: SN 2009hi (Type Ia, mag. 18.0) was discovered by Kōichi Itagaki, and independently by the Lick Observatory Supernova Search (LOSS), on 10 July 2009. [4] [5]

References

  1. 1 2 3 4 5 6 7 8 "NED Search results for NGC 7647". NASA/IPAC Extragalactic Database. Retrieved 2025-12-29.
  2. ↑ "NGC 7647 - Elliptical Galaxy in Pegasus" . Retrieved 29 December 2025.
  3. ↑ "New General Catalog Objects: NGC 7600 - 7649" . Retrieved 29 December 2025.
  4. ↑ Nakano, S.; Itagaki, K.; Li, W.; Cenko, S. B.; Filippenko, A. V. (2009). "Supernova 2009hi in NGC 7647". Central Bureau Electronic Telegrams (1872): 1. Bibcode:2009CBET.1872....1N.
  5. ↑ "SN 2009hi". Transient Name Server. IAU . Retrieved 5 March 2026.
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