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27 Lyncis
Observation data; Epoch J2000 Equinox J2000
Constellation	Lynx
Right ascension	08h 08m 27.44632s
Declination	+51° 30′ 24.0055″
Apparent magnitude (V)	4.78
Characteristics
Evolutionary stage	main sequence
Spectral type	A2 V
B−V color index	0.048±0.006
Astrometry
Radial velocity (Rv)	+11.0±4.2 km/s
Proper motion (μ)	RA: −60.95 mas/yr ; Dec.: −3.11 mas/yr
Parallax (π)	13.04 ± 0.31 mas
Distance	250 ± 6 ly ; (77 ± 2 pc)
Absolute magnitude (MV)	0.36
Details
Mass	2.24 M☉
Luminosity	65.41 L☉
Surface gravity (log g)	3.96 cgs
Temperature	10,014±340 K
Rotational velocity (v sin i)	183 km/s
Age	157 Myr
Other designations
	27 Lyn, BD+51°1391, FK5 307, HD 67006, HIP 39847, HR 3173, SAO 26687, WDS J08085+5130A
Database references
SIMBAD	data

27 Lyncis is a single^[6] star in the northern constellation of Lynx. It is visible to the naked eye as a faint, white-hued star with an apparent visual magnitude of 4.78.^[2] This object is located around 250 light years away from the Sun, as determine from parallax measurements.^[1] It is moving further from the Sun with a heliocentric radial velocity of +11 km/s.^[2]

This is an ordinary A-type main-sequence star with a stellar classification of A2 V,^[3] which indicates it is generating energy through hydrogen fusion at its core. It is 157^[4] million years old and is spinning with a projected rotational velocity of 183.^[4] The star has 2.24^[4] times the mass of the Sun and is radiating 65^[2] times the Sun's luminosity from its photosphere at an effective temperature of 10,014 K.^[4] X-ray emission is being detected near these coordinates, which may be coming from an undetected companion or a background source.^[7]

References

^ ^a ^b ^c ^d ^e ^f 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, S2CID 18759600.
^ ^a ^b ^c ^d ^e ^f ^g ^h 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, S2CID 119257644.
^ ^a ^b Cowley, A.; et al. (April 1969), "A study of the bright A stars. I. A catalogue of spectral classifications", Astronomical Journal, 74: 375–406, Bibcode:1969AJ.....74..375C, doi:10.1086/110819.
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ 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, S2CID 33401607.
^ "27 Lyn". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-06-06.
^ 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, S2CID 14878976.
^ De Rosa, R. J.; et al. (July 2011), "The Volume-limited A-Star (VAST) survey - I. Companions and the unexpected X-ray detection of B6-A7 stars", Monthly Notices of the Royal Astronomical Society, 415 (1): 854–866, arXiv:1103.4363, Bibcode:2011MNRAS.415..854D, doi:10.1111/j.1365-2966.2011.18765.x, S2CID 84181878.