24 Capricorni

24 Capricorni
Observation data
Epoch J2000      Equinox J2000
Constellation Capricornus
Right ascension 21h 07m 07.66733s[1]
Declination −25° 00′ 21.0790″[1]
Apparent magnitude (V) +4.49[2]
Characteristics
Spectral type M1− III[3]
B−V color index 1.604±0.005[2]
Astrometry
Radial velocity (Rv)+32.1±0.8[2] km/s
Proper motion (μ) RA: −28.09[1] mas/yr
Dec.: −44.14[1] mas/yr
Parallax (π)7.15 ± 0.22[1] mas
Distance460 ± 10 ly
(140 ± 4 pc)
Absolute magnitude (MV)−1.24[2]
Details
Radius54[4] R☉
Luminosity611[4] L☉
Temperature3,903[4] K
Other designations
A Capricorni, 24 Cap, CD−25° 15235, FK5 791, GC 29490, HD 200914, HIP 104234, HR 8080, SAO 190025, ADS 14632, CCDM J21071-2500[5]
Database references
SIMBADdata

24 Capricorni is a single[6] star in the constellation Capricornus. 24 Capricorni is a M-type red giant with an apparent magnitude of +4.49. It is approximately 460 light years from Earth.

Chinese name

In R. H. Allen's version, this star was represent the state Chu (or Tsoo).[7]

References

  1. 1 2 3 4 5 van Leeuwen, F. (2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics, 474 (2): 653–664, arXiv:0708.1752, Bibcode:2007A&A...474..653V, doi:10.1051/0004-6361:20078357.
  2. 1 2 3 4 Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos compilation", Astronomy Letters, 38 (5): 331, arXiv:1108.4971, Bibcode:2012AstL...38..331A, doi:10.1134/S1063773712050015.
  3. ↑ Keenan, P. C.; McNeil, R. C. (1989), "The Perkins catalog of revised MK types for the cooler stars", The Astrophysical Journal Supplement Series, 71: 245, Bibcode:1989ApJS...71..245K, doi:10.1086/191373.
  4. 1 2 3 Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051.
  5. ↑ "24 Cap". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2018-06-15.
  6. ↑ Eggleton, P. P.; Tokovinin, A. A. (September 2008), "A catalogue of multiplicity among bright stellar systems", Monthly Notices of the Royal Astronomical Society, 389 (2): 869–879, arXiv:0806.2878, Bibcode:2008MNRAS.389..869E, doi:10.1111/j.1365-2966.2008.13596.x.
  7. ↑ Star Names - R.H.Allen p.142


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