Astronomy:NGC 7454
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Short description: Galaxy in the constellation Pegasus
| NGC 7454 | |
|---|---|
 NGC 7454 (SDSS DR14) | |
| Observation data | |
| Constellation | Pegasus[1] |
| Redshift | 2,008 km/s[2] |
| Distance | 77.17 ± 0.46 Mly (23.66 ± 0.14 Mpc)[2] |
| Apparent magnitude (V) | 11.8[1] |
| Characteristics | |
| Type | E4[1] |
| Apparent size (V) | 2.1′ × 1.4′[1] |
NGC 7454 is an elliptical galaxy in the constellation Pegasus. It was discovered on October 15, 1784 by William Herschel.[3] This object has an apparent visual magnitude of 11.8, a visual size of 2.1′ × 1.4′,[1] and a morphological classification of E4.[1] J. L. E. Dreyer described the galaxy as F, cS, lE, lbM, *11 p 1', which indicates it is faint, considerably small, a little extended, with a little brighter middle, and an 11th magnitude star is located 1 arcmin to west.[4]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 Aranda, Ted (2011). 3,000 Deep-Sky Objects, An Annotated Catalogue. Springer New York. p. 473. ISBN 9781441994196. https://books.google.com/books?id=gc9oXfN3xYAC&pg=PA473.
- ↑ 2.0 2.1 Tully, R. Brent et al. (October 2013). "Cosmicflows-2: The Data". The Astronomical Journal 146 (4): 25. doi:10.1088/0004-6256/146/4/86. 86. Bibcode: 2013AJ....146...86T.
- ↑ Seligman, Courtney. "Celestial Atlas". https://cseligman.com/text/atlas/ngc74a.htm#7454.
- ↑ Frommert, Hartmut. "NGC 7454". https://spider.seds.org/ngc/ngc.cgi?7454.
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