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14 Camelopardalis

From Wikipedia, the free encyclopedia
Star in the constellation Camelopardalis
14 Camelopardalis
Observation data
EpochJ2000.0      EquinoxJ2000.0
ConstellationCamelopardalis
Right ascension05h 13m 31.24447s[1]
Declination+62° 41′ 28.0806″[1]
Apparent magnitude (V)6.49[2]
Characteristics
Evolutionary stagemain sequence[3]
Spectral typeA7 Vn[4]
B−Vcolor index0.204±0.006[2]
Astrometry
Radial velocity (Rv)−4.0±4.3[2] km/s
Proper motion (μ)RA: −36.338[1]mas/yr
Dec.: +1.038[1]mas/yr
Parallax (π)11.9698±0.0505 mas[1]
Distance272 ± 1 ly
(83.5 ± 0.4 pc)
Absolute magnitude (MV)2.00[2]
Details
Mass1.61[5] M
Luminosity15.1+1.4
−1.3
[3] L
Surface gravity (log g)3.96[5] cgs
Temperature7,872±268[5] K
Rotational velocity (v sin i)312[3] km/s
Age504[5] Myr
Other designations
14 Cam,BD+62°734,HD 33296,HIP 24348,HR 1678,SAO 13413[6]
Database references
SIMBADdata

14 Camelopardalis is astar in the northerncircumpolar constellation ofCamelopardalis, located 272 light years away from the Sun as determined byparallax measurements. With anapparent visual magnitude of 6.49,[2] it is a challenge to view with the naked eye even in excellent viewing conditions. The heliocentricradial velocity value is poorly constrained, but it appears to be moving closer to the Earth at the rate of around −4 km/s.[2]

This is a white-hued,A-type main-sequence star with astellar classification of A7 Vn,[4] where the 'n' notation indicates "nebulous"lines due to rapid rotation. The star is 504 million years old with 1.61[5] times themass of the Sun and is spinning with aprojected rotational velocity of 312 km/s.[3] It is radiating 15[3] times theSun's luminosity from itsphotosphere at aneffective temperature of 7,872 K.[5]

References

[edit]
  1. ^abcdeBrown, 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. Gaia DR2 record for this source atVizieR.
  2. ^abcdefAnderson, 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.
  3. ^abcdeZorec, J.; Royer, F. (2012), "Rotational velocities of A-type stars. IV. Evolution of rotational velocities",Astronomy & Astrophysics,537: A120,arXiv:1201.2052,Bibcode:2012A&A...537A.120Z,doi:10.1051/0004-6361/201117691,S2CID 55586789.
  4. ^abCowley, 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
  5. ^abcdefDavid, 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.
  6. ^"14 Cam".SIMBAD.Centre de données astronomiques de Strasbourg. Retrieved2019-04-15.
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