| NGC 7768 | |
|---|---|
 NGC 7768 image by SDSS | |
| Observation data (J2000 epoch) | |
| Constellation | Pegasus |
| Right ascension | 23h 50m 58.5460s[1] |
| Declination | +27° 08′ 50.415″[1] |
| Distance | 369 Mly |
| Characteristics | |
| Type | E[1] |
| Other designations | |
| NGC 7768, UGC 12806, CGCG 477-019, CGCG 2348.4+2653, MCG +04-56-018[1] | |
NGC 7768 is a large elliptical galaxy located in the constellation of Pegasus. Its velocity relative to the cosmic microwave background is 7,663 ± 28 km /s, which corresponds to a Hubble distance of 113.0 ± 7.9 Mpc (∼369 million light-years). NGC 7768 was discovered by the British astronomer John Herschel in 1828.[1][2]
NGC 7768 forms a pair of galaxies with NGC 7767. Observations made by the Hubble Space Telescope have shown that the galaxy's nucleus is surrounded by a disk of matter with a mass estimated at about 7×10³ M☉[3]
Supernova
One supernova has been observed in NGC 7768: SN 1968Z (type unknown, mag. 17.9) was discovered by Priser on 1 September 1968.[4]
Abell 2666
NGC 7768 is the brightest galaxy (noted BCG) in the Abell 2666 galaxy cluster. According to Austrian amateur astronomer Bernhard Hubl, the other brightest galaxies in the cluster are NGC 7765, NGC 7766 and NGC 7767.[5]
References
- ^ a b c d e "By Name | NASA/IPAC Extragalactic Database". ned.ipac.caltech.edu. Retrieved 2025-12-30.
- ^ "New General Catalog Objects: NGC 7750 - 7799". Retrieved 29 December 2025.
- ^ "1994AJ....108..102G Page 107". articles.adsabs.harvard.edu. Retrieved 2025-12-30.
- ^ "SN 1968Z". Transient Name Server. IAU. Retrieved 29 December 2025.
- ^ Hubl, Bernhard (2016-12-29). "Bernhard Hubl - Abell 2666". www.astrophoton.com. Retrieved 2025-12-30.
