G-type giant star in the constellation Auriga
Location of κ Aurigae (circled)
Observation dataEpoch J2000 Equinox J2000
Constellation
Auriga
Right ascension 06h 15m 22.68906s [1]
Declination
+29° 29′ 53.0760″[1]
Apparent magnitude (V)4.335[2]
Characteristics
Evolutionary stage
horizontal branch [3]
Spectral type
G8.5 IIIb[4]
U−B color index
+0.812[2]
B−V color index
+1.023[2]
R−I color index
0.54
Astrometry Radial velocity (Rv )+20.69 ± 0.15 [5] Proper motion (μ) RA: −70.88[1] mas /yr Dec.: −261.42[1] mas /yr Parallax (π)18.43 ± 0.23 mas [1] Distance 177 ± 2 ly pc ) Absolute magnitude (MV )+0.65[6] Details Mass 1.25[7] M ☉ Radius 11[5] R ☉ Luminosity 54[5] L ☉ Surface gravity (log g )2.7[5] cgs Temperature 4,732[5] K Metallicity −0.33[5] dex Rotational velocity (v sin i )2.5[5] Age 5.59[7] Gyr Other designations κ Aur, 44 Aurigae,
BD +29°1154,
FK5 1168,
HD 43039,
HIP 29696,
HR 2219,
SAO 78143,
2MASS J06152269+2929535, Gaia DR2 3436911415279548032
[8] Database references SIMBAD data
Kappa Aurigae , Latinised from κ Aurigae, is the Bayer designation for a star in the northern constellation of Auriga . It is visible to the naked eye with an apparent visual magnitude of 4.3.[2] parallax shift of mas [1] light-years (54 parsecs ) distant from Earth.
This is an evolved giant star with a stellar classification of G8.5 IIIb.[4] red clump star, which means it is towards the cool end of the horizontal branch and is generating energy through the fusion of helium at its core.[3] radius of the Sun and shines with 54 times the Sun's luminosity . This energy is radiated into outer space from the outer envelope at an effective temperature of K [5] G-type star .[9]
References
^ a b c d e f van Leeuwen, F. (November 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 Jennens, P. A.; Helfer, H. L. (September 1975), "A new photometric metal abundance and luminosity calibration for field G and K giants", Monthly Notices of the Royal Astronomical Society 172 (3): 667–679, Bibcode :1975MNRAS.172..667J , doi :10.1093/mnras/172.3.667 ^ a b Alves, David R. (August 2000), "K-Band Calibration of the Red Clump Luminosity", The Astrophysical Journal , 539 (2): 732–741, arXiv :astro-ph/0003329 Bibcode :2000ApJ...539..732A , doi :10.1086/309278 , S2CID 16673121 . ^ a b 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 . ^ a b c d e f g h Massarotti, Alessandro; et al. (January 2008), "Rotational and Radial Velocities for a Sample of 761 HIPPARCOS Giants and the Role of Binarity", The Astronomical Journal , 135 (1): 209–231, Bibcode :2008AJ....135..209M , doi :10.1088/0004-6256/135/1/209 S2CID 121883397 . ^ 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 Luck, R. Earle (2015), "Abundances in the Local Region. I. G and K Giants", The Astronomical Journal , 150 (3): 88, arXiv :1507.01466 Bibcode :2015AJ....150...88L , doi :10.1088/0004-6256/150/3/88 , S2CID 118505114 . ^ "* kap Aur" . SIMBAD Centre de données astronomiques de Strasbourg . Retrieved 2012-07-18 .^ "The Colour of Stars" , Australia Telescope, Outreach and Education , Commonwealth Scientific and Industrial Research Organisation , December 21, 2004, archived from the original on February 22, 2012, retrieved 2012-01-16 .
References
This page was last edited on 12 August 2023, at 15:48
This page was last edited on 12 August 2023, at 15:48