NGC 772

NGC 772
Spiral Galaxy NGC 772 with two supernova (SN 2003hl & 2003iq) and asteroid 6223 Dahl
Observation data (J2000 epoch)
Constellation	Aries
Right ascension	01h 59m 19.6s[1]
Declination	+19° 00′ 27″[1]
Redshift	2472 ± 3 km/s[1]
Distance	130 Mly[citation needed]
Type	SA(s)b[1]
Apparent dimensions (V)	7′.2 × 4′.3[1]
Apparent magnitude (V)	11.1[1]
Other designations
UGC 1466,[1] PGC 7525,[1] Arp 78[1]
See also: Galaxy, List of galaxies

NGC 772 (also known as Arp 78) is an unbarred spiral galaxy approximately 130 million light-years away in the constellation Aries. It is notable for possessing a single elongated outer spiral arm, which has likely arisen due to tidal interactions with nearby galaxies. At around 100,000 light years in diameter, NGC 772 rivals the Milky Way Galaxy in size and is surrounded by several satellite galaxies including the dwarf elliptical, NGC 770. Two supernovae (SN 2003 hl & SN 2003 iq) have been observed in NGC 772.

It probably has a H II nucleus, however it may be a transitional object.^[2]

See also

• Whirlpool Galaxy
• Spiral Galaxy NGC 1097

External links

• Spiral Galaxy NGC 772; Elliptical Galaxy NGC 770
• NGC 772 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images

References

1. ^ ^{a b c d e f g h i} "NASA/IPAC Extragalactic Database". Results for NGC 772. http://nedwww.ipac.caltech.edu/. Retrieved 2006-11-25. 
2. ^ Ho, Luis C.; Filippenko, Alexei V.; Sargent, Wallace L. W. (October 1997). "A Search for "Dwarf" Seyfert Nuclei. III. Spectroscopic Parameters and Properties of the Host Galaxies". Astrophysical Journal Supplement 112 (2): 315–390. arXiv:astro-ph/9704107. Bibcode 1997ApJS..112..315H. doi:10.1086/313041 

Astronomical catalogs
NGC:	NGC 770 - NGC 771 - NGC 772 - NGC 773 - NGC 774
PGC:	PGC 7523 - PGC 7524 - PGC 7525 - PGC 7526 - PGC 7527
UGC:	UGC 1464 - UGC 1465 - UGC 1466 - UGC 1467 - UGC 1468
Arp:	Arp 76 - Arp 77 - Arp 78 - Arp 79 - Arp 80

Coordinates: 01^h 59^m 19.6^s, +19° 00′ 27″