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NGC 7714

NGC 7714
NGC 7714 imaged by the Hubble Space Telescope[1]
Observation data (J2000 epoch)
ConstellationPisces
Right ascension23h 36m 14.1232s[2]
Declination+02° 09′ 18.133″[2]
Redshift0.009333[2]
Heliocentric radial velocity2798 ± 1 km/s[2]
Distance116.9 ± 8.3 Mly (35.85 ± 2.54 Mpc)[2]
Apparent magnitude (V)12.2
Characteristics
TypeSB:(s)b? pec,[3] HII[4]
Size~67,100 ly (20.57 kpc) (estimated)[2]
Apparent size (V)1.90 × 1.4 moa[4]
Other designations
MRK 538, KCPG 587A, UM 167, HOLM 810A, IRAS 23336+0152, Arp 284, UGC 12699, MCG +00-60-017, PGC 71868, CGCG 381-011, VV 51[2]

NGC 7714 is a spiral galaxy in the constellation Pisces. Its velocity with respect to the cosmic microwave background is 2430 ± 26 km/s, which corresponds to a Hubble distance of 116.9 ± 8.3 Mly (35.85 ± 2.54 Mpc).[2] In addition, five non-redshift measurements give a distance of 92.24 ± 8.69 Mly (28.280 ± 2.664 Mpc).[5] It was discovered by British astronomer John Herschel on 18 September 1830.[6]

NGC 7714 and NGC 7715 are interacting galaxies.[4] The pair are included in Halton Arp's Atlas of Peculiar Galaxies, listed as Arp 284.[7] NGC 7714 appears to be a highly distorted spiral, possibly a barred spiral galaxy. NGC 7715 is of uncertain type, probably an edge-on spiral or an irregular galaxy.[3]

Supernovae

Three supernovae have been observed in NGC 7714:

  • SN 1999dn (type Ib/c, mag. 16.3) was discovered by the BAO Supernova Survey on 19 August 1999.[8][3][9]
  • SN 2007fo (type Ib/c, mag. 18.2) was discovered by the Lick Observatory Supernova Search on 9 July 2007.[10][11]
  • SN 2023pso (type Ib, mag. 17.1) was discovered by GOTO on 7 August 2023.[12]
NGC 7714 (right) and NGC 7715 (left) imaged by legacy surveys

See also

References

  1. ^ "The tell-tale signs of a galactic merger". Retrieved 24 June 2015.
  2. ^ a b c d e f g h "Results for object NGC 7714". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 12 December 2024.
  3. ^ a b c Galaxies NGC 7714 & NGC 7715 (Arp 284) at Kopernik Observatory & Science Center
  4. ^ a b c "Centre de Données astronomiques de Strasbourg". Results for NGC 7714. Retrieved 2010-11-07.
  5. ^ "Distance Results for NGC 7714". NASA/IPAC EXTRAGALACTIC DATABASE. NASA. Retrieved 12 December 2024.
  6. ^ Seligman, Courtney. "New General Catalogue Objects: NGC 7714". Celestial Atlas. Retrieved 12 December 2024.
  7. ^ Arp, Halton (1966). Atlas of peculiar galaxies. Bibcode:1966apg..book.....A.
  8. ^ Qiu, Y. L.; Qiao, Q. Y.; Hu, J. Y.; Zhou, X.; Zheng, Z. (1999). "Supernova 1999dn in NGC 7714". International Astronomical Union Circular (7241): 1. Bibcode:1999IAUC.7241....1Q.
  9. ^ "SN 1999dn". Transient Name Server. IAU. Retrieved 12 December 2024.
  10. ^ Khandrika, H.; Li, W. (2007). "Supernova 2007fo in NGC 7714". Central Bureau Electronic Telegrams. 997: 1. Bibcode:2007CBET..997....1K.
  11. ^ "SN 2007fo". Transient Name Server. IAU. Retrieved 12 December 2024.
  12. ^ "SN 2023pso". Transient Name Server. IAU. Retrieved 12 December 2024.


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