From Wikipedia, the free encyclopedia
NGC 7454
NGC 7454 (SDSS DR14)
Observation data
Constellation Pegasus [1]
Redshift2,008 km/s [2]
Distance77.17 ± 0.46 Mly (23.66 ± 0.14 Mpc) [2]
Apparent magnitude (V)11.8 [1]
Characteristics
TypeE4 [1]
Apparent size (V)2.1 × 1.4 [1]
Other designations
NGC 7454, UGC 12305, LEDA 70264

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. ^ a b c d e f Aranda, Ted (2011). 3,000 Deep-Sky Objects, An Annotated Catalogue. Springer New York. p. 473. ISBN  9781441994196.
  2. ^ a b Tully, R. Brent; et al. (October 2013). "Cosmicflows-2: The Data". The Astronomical Journal. 146 (4): 25. arXiv: 1307.7213. Bibcode: 2013AJ....146...86T. doi: 10.1088/0004-6256/146/4/86. S2CID  118494842. 86.
  3. ^ Seligman, Courtney. "Celestial Atlas". cseligman.com. Retrieved 2022-12-12.
  4. ^ Frommert, Hartmut. "NGC 7454". SEDS. Retrieved 2022-12-12.
  • Media related to NGC 7454 at Wikimedia Commons


From Wikipedia, the free encyclopedia
NGC 7454
NGC 7454 (SDSS DR14)
Observation data
Constellation Pegasus [1]
Redshift2,008 km/s [2]
Distance77.17 ± 0.46 Mly (23.66 ± 0.14 Mpc) [2]
Apparent magnitude (V)11.8 [1]
Characteristics
TypeE4 [1]
Apparent size (V)2.1 × 1.4 [1]
Other designations
NGC 7454, UGC 12305, LEDA 70264

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. ^ a b c d e f Aranda, Ted (2011). 3,000 Deep-Sky Objects, An Annotated Catalogue. Springer New York. p. 473. ISBN  9781441994196.
  2. ^ a b Tully, R. Brent; et al. (October 2013). "Cosmicflows-2: The Data". The Astronomical Journal. 146 (4): 25. arXiv: 1307.7213. Bibcode: 2013AJ....146...86T. doi: 10.1088/0004-6256/146/4/86. S2CID  118494842. 86.
  3. ^ Seligman, Courtney. "Celestial Atlas". cseligman.com. Retrieved 2022-12-12.
  4. ^ Frommert, Hartmut. "NGC 7454". SEDS. Retrieved 2022-12-12.
  • Media related to NGC 7454 at Wikimedia Commons



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