Upsilon Capricorni

Upsilon Capricorni
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Capricornus
Right ascension 20h 40m 02.94470s[1]
Declination −18° 08′ 19.1724″[1]
Apparent magnitude (V) 5.17[2]
Characteristics
Spectral type M1 III[3]
B−V color index +1.65[2]
Astrometry
Radial velocity (Rv)−12.30±1.6[4] km/s
Proper motion (μ) RA: −22.41[1] mas/yr
Dec.: −21.67[1] mas/yr
Parallax (π)5.62 ± 0.29[1] mas
Distance580 ± 30 ly
(178 ± 9 pc)
Absolute magnitude (MV)−1.09[5]
Details
Luminosity944[6] L☉
Temperature3,779[6] K
Metallicity [Fe/H]−0.08[5] dex
Other designations
υ Cap, 15 Cap, BD−18° 5738, FK5 773, HD 196777, HIP 101984, HR 7900, SAO 163779[7]
Database references
SIMBADdata

Upsilon Capricorni, Latinized from υ Capricorni, is a solitary[8] star 0.22 degrees north of the ecliptic, in the southern constellation Capricornus. It is a M-type red giant with an apparent magnitude of +5.17, about 760 light years from Earth.

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 Barnes, T. G.; et al. (May 1978), "Stellar angular diameters and visual surface brightness. III - an improved definition of the relationship", Monthly Notices of the Royal Astronomical Society, 183: 285–304, Bibcode:1978MNRAS.183..285B, doi:10.1093/mnras/183.3.285.
  3. ↑ Houk, N.; Smith-Moore, M. (1988), Michigan Catalogue of Two-dimensional Spectral Types for the HD Stars, 4, Bibcode:1988mcts.book.....H.
  4. ↑ Gontcharov, G. A. (November 2006), "Pulkovo Compilation of Radial Velocities for 35495 Hipparcos stars in a common system", Astronomy Letters, 32 (11): 759–771, arXiv:1606.08053, Bibcode:2006AstL...32..759G, doi:10.1134/S1063773706110065.
  5. 1 2 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.
  6. 1 2 McDonald, I.; et al. (2012), "Fundamental parameters and infrared excesses of Hipparcos stars", Monthly Notices of the Royal Astronomical Society, 427: 343, arXiv:1208.2037, Bibcode:2012MNRAS.427..343M, doi:10.1111/j.1365-2966.2012.21873.x.
  7. ↑ "* ups Cap". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2017-05-12.
  8. ↑ 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.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.