Kappa Trianguli Australis Variable star in the constellation Triangulum Australe
Kappa Trianguli Australis (κ Trianguli Australis) is a star in the constellation Triangulum Australe . It is a yellow G-type supergiant with an apparent magnitude of +5.08, making it visible to the naked eye under good observing conditions. It is around 1,200 light years from Earth .
A light curve for Kappa Trianguli Australis, plotted from Hipparcos [ 12] It is not generally listed as a variable star but Hipparcos photometry showed small amplitude brightness changes. The dominant period was around 600 days and the amplitude less than a hundredth of a magnitude.[ 13]
References
^ a b c d e 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 Cousins, A. W. J. (1977), "UCBV Magnitudes and Colours of South Circumpolar Stars", South African Astronomical Observatory Circulars , 1 : 51, Bibcode :1977SAAOC...1...51C . ^ Houk, N.; Cowley, A. P. (1975), "University of Michigan Catalogue of two-dimensional spectral types for the HD stars", University of Michigan Catalogue of two-dimensional spectral types for the HD stars. Volume I. Declinations -90_ to -53_ƒ0 , 1 , Bibcode :1975mcts.book.....H . ^ "Kap TrA" . The International Variable Star Index . AAVSO – American Association of Variable Star Observers. Retrieved 18 September 2018 .^ 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. ^ 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 Tetzlaff, N.; Neuhäuser, R.; Hohle, M. M. (2011). "A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun" . Monthly Notices of the Royal Astronomical Society . 410 (1): 190– 200. arXiv :1007.4883 Bibcode :2011MNRAS.410..190T . doi :10.1111/j.1365-2966.2010.17434.x S2CID 118629873 . ^ McDonald, I.; et al. (2012), "Fundamental Parameters and Infrared Excesses of Hipparcos Stars", Monthly Notices of the Royal Astronomical Society , 427 (1): 343– 57, arXiv :1208.2037 Bibcode :2012MNRAS.427..343M , doi :10.1111/j.1365-2966.2012.21873.x S2CID 118665352 . ^ a b Soubiran, Caroline; Le Campion, Jean-François; Brouillet, Nathalie; Chemin, Laurent (2016). "The PASTEL catalogue: 2016 version". Astronomy & Astrophysics . 591 : A118. arXiv :1605.07384 Bibcode :2016A&A...591A.118S . doi :10.1051/0004-6361/201628497 . S2CID 119258214 . ^ a b Ammler-von Eiff, Matthias; Reiners, Ansgar (June 2012), "New measurements of rotation and differential rotation in A-F stars: are there two populations of differentially rotating stars?", Astronomy & Astrophysics , 542 : A116, arXiv :1204.2459 Bibcode :2012A&A...542A.116A , doi :10.1051/0004-6361/201118724 , S2CID 53666672 . ^ "kap TrA" . SIMBAD Centre de données astronomiques de Strasbourg . Retrieved 2017-06-29 .{{cite web }}: CS1 maint: postscript (link )^ "/ftp/cats/more/HIP/cdroms/cats" . Centre de Données astronomiques de Strasbourg . Strasbourg astronomical Data Center. Retrieved 15 October 2022 .^ Koen, Chris; Eyer, Laurent (2002). "New periodic variables from the Hipparcos epoch photometry" . Monthly Notices of the Royal Astronomical Society . 331 (1): 45– 59. arXiv :astro-ph/0112194 Bibcode :2002MNRAS.331...45K . doi :10.1046/j.1365-8711.2002.05150.x S2CID 10505995 .
