NGC 7714

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
NGC 7714 imaged by the Hubble Space Telescope[1]
Observation data (J2000 epoch)
Constellation	Pisces
Right ascension	23h 36m 14.1232s[2]
Declination	+02° 09′ 18.133″[2]
Redshift	0.009333[2]
Heliocentric radial velocity	2798 ± 1 km/s[2]
Distance	116.9 ± 8.3 Mly (35.85 ± 2.54 Mpc)[2]
Apparent magnitude (V)	12.2
Characteristics
Type	SB:(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
KCPG 587A, UM 167, HOLM 810A, IRAS 23336+0152, Arp 284, UGC 12699, MCG +00-60-017, Mrk 538, PGC 71868, CGCG 381-011, VV 51[2]

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. 17.15) was discovered by GOTO on 7 August 2023.^[12]

NGC 7714 (right) and NGC 7715 (left) imaged by legacy surveys

See also

• List of NGC objects (7001–7840)