Star in the constellation Cancer
34 Cancri is a star in the zodiac constellation of Cancer , located about 568 light years away from the Sun. It is a challenge to view with the naked even under good viewing conditions, having an apparent visual magnitude of 6.48. At the distance of this star, its visual magnitude is diminished by an extinction of 0.14 due to interstellar dust .
This is an A-type main-sequence star with a stellar classification of A1 V. It is a chemically peculiar star , possibly of the magnetic-type (CP2), showing an abnormal abundance of strontium. The star is an estimated 336 million years old with only a moderate projected rotational velocity of 18 km/s. It has an estimated 2.7 times the mass of the Sun and about 2.7 times the Sun's radius. The star is radiating 70 times the Sun's luminosity from its photosphere at an effective temperature of 9,661 K.
References
^ 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 .Gaia DR2 record for this source at VizieR .
^ 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 .
^ 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 .
^ "34 Cnc" . SIMBAD Centre de données astronomiques de Strasbourg . Retrieved 2019-02-28.
de Bruijne, J. H. J.; Eilers, A.-C. (October 2012), "Radial velocities for the HIPPARCOS-Gaia Hundred-Thousand-Proper-Motion project", Astronomy & Astrophysics , 546 : 14, arXiv :1208.3048 , Bibcode :2012A&A...546A..61D , doi :10.1051/0004-6361/201219219 , S2CID 59451347 , A61.
^ Zorec, J.; et al. (2012), "Rotational velocities of A-type stars. IV. Evolution of rotational velocities", Astronomy and Astrophysics , 537 : A120, arXiv :1201.2052 , Bibcode :2012A&A...537A.120Z , doi :10.1051/0004-6361/201117691 , S2CID 55586789 .
^ Pasinetti Fracassini, L. E.; et al. (February 2001), "Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS)", Astronomy and Astrophysics , 367 (Third ed.): 521–524, arXiv :astro-ph/0012289 , Bibcode :2001A&A...367..521P , doi :10.1051/0004-6361:20000451 , S2CID 425754 .
Gontcharov, G. A. (November 2012), "Spatial distribution and kinematics of OB stars", Astronomy Letters , 38 (11): 694–706, arXiv :1606.09028 , Bibcode :2012AstL...38..694G , doi :10.1134/S1063773712110035 , S2CID 119108982 .
Wraight, K. T.; et al. (February 2012), "A photometric study of chemically peculiar stars with the STEREO satellites - I. Magnetic chemically peculiar stars", Monthly Notices of the Royal Astronomical Society , 420 (1): 757–772, arXiv :1110.6283 , Bibcode :2012MNRAS.420..757W , doi :10.1111/j.1365-2966.2011.20090.x , S2CID 14811051 .
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34 Cancri
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