Messier 52

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Messier 52

Open cluster Messier 52 in Cassiopeia
Credit: 2MASS/NASA
Observation data (J2000 epoch)
Constellation Cassiopeia
Right ascension 23h 24m 48.0s[1]
Declination +61° 35′ 36″[1]
Distance 4.6 kly (1.4 kpc)[1]
Apparent magnitude (V) 7.3[2]
Apparent dimensions (V) 13.0[3]
Physical characteristics
Mass 1,200 M[4] M
Radius 9.5 ly[3]
Estimated age 158.5 Myr[1]
Other designations NGC 7654, Cr 455, C 2322+613, OCl 260[5]
See also: Open cluster, List of open clusters

Messier 52 (M52, NGC 7654) sī chi̍t-ê chhiⁿ-thôan, tī thian-kiû ê só͘-chāi sī Cassiopeia-chō.

Tsù-kái[siu-kái | kái goân-sí-bé]

  1. 1.0 1.1 1.2 1.3 Wu, Zhen-Yu; et al. (November 2009), "The orbits of open clusters in the Galaxy", Monthly Notices of the Royal Astronomical Society, 399 (4): 2146–2164, arXiv:0909.3737Freely accessible, Bibcode:2009MNRAS.399.2146W, doi:10.1111/j.1365-2966.2009.15416.x. 
  2. "Messier 52". SEDS Messier Catalog. 29 April 2022 khòaⁿ--ê. 
  3. 3.0 3.1 Adam, Len (2018), Imaging the Messier Objects Remotely from Your Laptop, The Patrick Moore Practical Astronomy Series, Springer, p. 241, Bibcode:2018imor.book.....A, ISBN 978-3319653853 
  4. Bonatto, C.; Bica, E. (September 2006), "Methods for improving open cluster fundamental parameters applied to M 52 and NGC 3960", Astronomy and Astrophysics, 455 (3): 931–942, arXiv:astro-ph/0608022Freely accessible, Bibcode:2006A&A...455..931B, doi:10.1051/0004-6361:20065315 
  5. "M 52". SIMBAD. Centre de données astronomiques de Strasbourg. November 28, 2018 khòaⁿ--ê. 

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