NGC 7721
Galaxy in the constellation Aquarius
From Wikipedia, the free encyclopedia
NGC 7721 is a spiral galaxy located around 79 million light-years away in the constellation Aquarius.[1][2] NGC 7721 was discovered on September 10, 1785, by the astronomer William Herschel, and its diameter is 70,000 light-years across.[1] NGC 7721 is not known to have much star formation, and it is not known to have an active galactic nucleus.[1][3]
Right ascension23h 38m 48.65s[1]
Declination−06° 31′ 04.30″[1]
| NGC 7721 | |
|---|---|
NGC 7721 imaged by Legacy Surveys | |
| Observation data (J2000 epoch) | |
| Constellation | Aquarius |
| Right ascension | 23h 38m 48.65s[1] |
| Declination | −06° 31′ 04.30″[1] |
| Redshift | 0.006728 ± 2.00e-6[1] |
| Distance | 79 Mly (24.47 Mpc)[1] |
| Apparent magnitude (V) | 11.6[1] |
| Characteristics | |
| Type | SA(s)c[1] |
| Size | 70,000 ly[1] |
| Apparent size (V) | 3.5′ × 1.4′[1] |
| Other designations | |
| PGC 72001,[1] AGC 630233,[1] IRAS 23362-0647,[1] LEDA 72001[1] | |
