NGC 7816

NGC 7816
SDSS image of NGC 7816
Observation data (J2000 epoch)
Constellation	Pisces
Right ascension	00^h 03^m 48.8^s[1]
Declination	07° 28′ 43″[1]
Redshift	0.017480/5240 km/s[1]
Distance	217,249,200 ly
Apparent magnitude (V)	13.61 [1]
Characteristics
Type	Sbc [1]
Size	~ 65,468.34 ly
Apparent size (V)	1.7 x 1.5[1]
Other designations
CGCG 408-18, IRAS 00012+0712, MCG+1-1-18, PGC 263, UGC 16[1]

NGC 7816 is a spiral galaxy located about 215 million light-years away^[2] in the constellation of Pisces.^[3] It was discovered by astronomer William Herschel on September 26, 1785.^[4]

One supernovae has been observed in NGC 7816: SN 2017gww (type II, mag. 17.9)^[5]

Pair with NGC 7818

NGC 7816 is listed as being in pair with the galaxy NGC 7818.^[4][6] NGC 7818 is also listed as being a disturbed member of the pair.^[4][7] However, due to the large difference in their recessional velocities, the two galaxies are not a true pair but an optical double.^[4]

See also

• List of NGC objects (7001–7840)

References

1. "NASA/IPAC Extragalactic Database". Results for NGC 7816. Retrieved 2017-08-10.
2. "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2017-08-11.
3. Rojas, Sebastián García. "Galaxy NGC 7816 – Galaxy in Pisces Constellation · Deep Sky Objects Browser". DSO Browser. Retrieved 2017-08-11.
4. "New General Catalog Objects: NGC 7800 – 7840". cseligman.com. Retrieved 2017-08-11.
5. Transient Name Server entry for SN 2017gww. Retrieved 24 March 2023.
6. "Detailed Object Classifications". ned.ipac.caltech.edu. Retrieved 2017-08-11.
7. "Detailed Object Classifications". ned.ipac.caltech.edu. Retrieved 2017-08-11.

External links

• Media related to NGC 7816 at Wikimedia Commons
• NGC 7816 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images