Star in the constellation Pictor
κ Pictoris , Latinised as Kappa Pictoris , is a star in the constellation Pictor . It is close to the lower limit of stars that are visible to the naked eye having an apparent visual magnitude of +6.11.[ 2] Based upon an annual parallax shift of 5.14 mas as seen from Earth,[ 1] this star is located around 630 light years from the Sun . At that distance, the visual magnitude is diminished by an extinction factor of 0.10 due to interstellar dust .[ 5]
This is a B-type main sequence star with a stellar classification of B8/9 V.[ 3] It is about 76.4% of the way through its main sequence lifespan.[ 6] The star is spinning rapidly with a projected rotational velocity of 264 km/s.[ 6] It has an estimated 3.4 times the mass of the Sun and is radiating 210 times the Sun's luminosity from its photosphere at an effective temperature of 11,641 K.[ 6]
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 Johnson, H. L.; et al. (1966), "UBVRIJKL photometry of the bright stars", Communications of the Lunar and Planetary Laboratory , 4 (99): 99, Bibcode :1966CoLPL...4...99J .
^ a b Houk, Nancy (1979), Michigan catalogue of two-dimensional spectral types for the HD stars , vol. 1, Ann Arbor, Michigan: Dept. of Astronomy, University of Michigan, Bibcode :1978mcts.book.....H .
^ 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.
^ a b c 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 .
^ a b c d Zorec, J.; Royer, F. (January 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 .
^ "kap Pic" . SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 2017-06-21 .{{cite web }}
: CS1 maint: postscript (link )