| NGC 7723 | |
|---|---|
 NGC 7723 by Adam Block/Mount Lemmon SkyCenter | |
| Observation data (J2000 epoch) | |
| Constellation | Aquarius |
| Right ascension | 23h 38m 57.1s[1] |
| Declination | −12° 57′ 40″[1] |
| Redshift | 0.006254 ± 0.000027 [1] |
| Heliocentric radial velocity | 1875 ± 8 km/s[1] |
| Distance | 91.5 ± 10.6 Mly (28.1 ± 3.3 Mpc)[1] |
| Apparent magnitude (V) | 11.2[2] |
| Characteristics | |
| Type | SB(r)b [1] |
| Apparent size (V) | 3.5′ × 2.3′[1] |
| Other designations | |
| MCG -02-60-005, PGC 72009[1] | |
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NGC 7723 is a barred spiral galaxy located in the constellation Aquarius. It is located at a distance of circa 90 million light years from Earth, which, given its apparent dimensions, means that NGC 7723 is about 95,000 light years across. It was discovered by William Herschel on November 27, 1785.[3] The galaxy is included in the Herschel 400 Catalogue. It lies 1.5 degrees north-northwest from Omega1 Aquarii. It can be seen with a 4-inch telescope under dark skies.[4]
- ^ a b c d e f g h "NASA/IPAC Extragalactic Database". Results for NGC 7723. Retrieved 2016-01-18.
- ^ "Revised NGC Data for NGC 7723". spider.seds.org. Retrieved 25 November 2018.
- ^ Seligman, Courtney. "NGC 7723 (= PGC 72009)". Celestial Atlas. Retrieved 19 November 2018.
- ^ O'Meara, Steve (2007). Steve O'Meara's Herschel 400 observing guide : how to find and explore 400 star clusters, nebulae, and galaxies discovered by William and Caroline Herschel. Cambridge: Cambridge university press. p. 285. ISBN 978-0521858939.