Coordinates: Sky map 23h 46m 58.5s, +29° 27′ 32″

NGC 7752 and NGC 7753

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NGC 7752 / 7753
NGC 7753 (big) and 7752 (small, bottom right), imaged by the Hubble Space Telescope
Observation data (J2000 epoch)
ConstellationPegasus
Right ascension23h 46m 58.5s / 23h 47m 04.8s[1]
Declination+29° 27′ 32″ / +29° 29′ 00″[1]
Heliocentric radial velocity5072 ± 5 / 5168 ± 6 km/s[1]
Distance272 Mly[2]
Apparent magnitude (V)15.0 / 12.8[1]
Characteristics
TypeI0 / SAB(rs)bc
Size30.82 kiloparsecs (100,500 light-years) (NGC 7753 diameter; 25.0 mag/arcsec2 B-band isophote)[1]
Apparent size (V)0.8′ × 0.5′ / 3.3′ × 2.1′[1]
Other designations
UGC 12779 / 12780,[1] PGC 72382 / 72387,[1] Arp 86[1]

NGC 7752 and NGC 7753 are a pair of galaxies approximately 272 million light-years away in the constellation Pegasus. They were discovered by R. J. Mitchell on 22 November 1854.[3]

NGC 7753 is the primary galaxy. It is a barred spiral galaxy with a small nucleus. NGC 7752 is the satellite galaxy of NGC 7753. It is a barred lenticular galaxy that is apparently attached to one of NGC 7753's spiral arms. They resemble the Whirlpool Galaxy (M51A) and its satellite NGC 5195 (M51B).

Supernovae

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Five supernovae have been observed in NGC 7753:

  • SN 2006A (type unknown, mag. 18.1) was discovered by Tom Boles on 2 January 2006.[4][5]
  • SN 2006ch (Type Ia, mag. 16.5) was discovered by Kōichi Itagaki on 9 May 2006.[6][7]
  • SN 2013Q (Type Ia, mag. 17.5) was discovered by Zhijian Xu and Xing Gao, and independently by Alessandro Dimai, on 25 January 2013.[8][9]
  • SN 2015ae (Type II, mag. 17.3) was discovered by Kōichi Itagaki on 6 August 2015.[10]
  • SN 2025kyg (Type Ia, mag. 15.7277) was discovered by the Automatic Learning for the Rapid Classification of Events (ALeRCE) on 21 May 2025.[11]

See also

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References

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  1. ^ a b c d e f g h i Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
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  5. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  6. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
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  8. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
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  11. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
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