16 Lyncis

16 Lyncis (16 Lyn) is the 4th magnitude and brightest star in the constellation Lynx. Located approximately 74 parsecs (240 ly) distant. It was also known as Psi10 Aurigae (ψ10 Aur).

This article is about ψ10 Aurigae. For other stars with this Bayer designation, see ψ Aurigae.
16 Lyncis
Location of 16 Lyncis (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Lynx
Right ascension  06h 57m 37.10709s[1]
Declination +45° 05′ 38.7404″[1]
Apparent magnitude (V) 4.90[2]
Characteristics
Spectral type A0Vn[3]
B−V color index 0.03[2]
Variable type suspected
Astrometry
Radial velocity (Rv)−11.90±1[4] km/s
Proper motion (μ) RA: −21.52±0.27[1] mas/yr
Dec.: −3.12±0.17[1] mas/yr
Parallax (π)13.54 ± 0.23[1] mas
Distance241 ± 4 ly
(74 ± 1 pc)
Absolute magnitude (MV)0.56[5]
Details[6]
Mass2.38 M☉
Luminosity56[5] L☉
Surface gravity (log g)4.02 cgs
Temperature10,395±353 K
Rotational velocity (v sin i)229 km/s
Age181 Myr
Other designations
Psi10 Aurigae, 16 Lyn, BD+45°1367, HD 50973, HIP 33485, HR 2585, SAO 41463
Database references
SIMBADdata

It is a A-type main-sequence star with a spectral type of A0Vn, a star that is currently fusing its core hydrogen.

16 Lyncis is suspected of being slightly variable, but this has not been confirmed.[7] It was noted when 16 Lyncis was used as a comparison star for observing another variable, the peculiar HD 51418 (NY Aurigae).[8]

References
  1. 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. Hoffleit, D.; Warren, W. H. (1995). "VizieR Online Data Catalog: Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991)". VizieR On-line Data Catalog: V/50. Originally Published in: 1964BS....C......0H. 5050. Bibcode:1995yCat.5050....0H.
  3. <Abt, Helmut A.; Morrell, Nidia I. (1995). "The Relation between Rotational Velocities and Spectral Peculiarities among A-Type Stars". The Astrophysical Journal Supplement Series. 99: 135. Bibcode:1995ApJS...99..135A. doi:10.1086/192182.
  4. Gontcharov, G. A. (November 2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759–771. arXiv:1606.08053. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065.
  5. 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. David, Trevor J.; Hillenbrand, Lynne A. (2015), "The Ages of Early-Type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets", The Astrophysical Journal, 804 (2): 146, arXiv:1501.03154, Bibcode:2015ApJ...804..146D, doi:10.1088/0004-637X/804/2/146.
  7. VSX (18 January 2010). "NSV 3293". AAVSO Website. American Association of Variable Star Observers. Retrieved 11 October 2014.
  8. Gulliver, A. F.; Winzer, J. E. (1973). "Spectrum and light variations of the peculiar a star HD 51418". The Astrophysical Journal. 183: 701. Bibcode:1973ApJ...183..701G. doi:10.1086/152260.
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