NGC 7681
| NGC 7681 | |
|---|---|
 | |
| Observation data (J2000 epoch) | |
| Constellation | Pegasus |
| Right ascension | 23h 28m 54.8752ss[1] |
| Declination | +17° 18′ 33.509″″[1] |
| Redshift | 0.022846[1] |
| Heliocentric radial velocity | 6849 ± 17 km/s[1] |
| Distance | 326 ± 23 Mly (99.9 ± 7.0 Mpc)[1] |
| Apparent magnitude (V) | 13.8 |
| Characteristics | |
| Type | S0^0? edge-on[1] |
| Apparent size (V) | 1.9′ × 1.1′ |
| Other designations | |
| UGC 12620, CGCG 454-074, CGCG 2326.4+1703, MCG +03-59-063[1] | |
NGC 7681 is a lenticular galaxy located in the constellation Pegasus. It was discovered on October 11, 1784 by the astronomer William Herschel.[2]
Galaxy group
[edit]NGC 7681 is the dominant member of a small, interacting group of galaxies known as the NGC 7681 group (or LGG 479). The group notably includes the Seyfert galaxies NGC 7679 and NGC 7682, which exhibit strong gravitational ties and tidal interactions with one another, alongside the smaller spiral galaxy UGC 12618.[3]
See also
[edit]References
[edit]- 1 2 3 4 5 6 7 "NASA/IPAC Extragalactic Database (NED) results for object NGC 7681". NASA/IPAC. Retrieved 2026-06-27.
- ↑ "New General Catalog Objects: NGC 7650 - 7699". Retrieved 28 December 2025.
- ↑ Garcia, A. M. (1993). "General study of group membership. II - Determination of nearby groups". Astronomy and Astrophysics Supplement Series. 100: 47–90. Bibcode:1993A&AS..100...47G.
External links
[edit]
Wikimedia Commons has media related to NGC 7681.