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K-type giant star in the constellation Auriga
38 Aurigae is a
star located 236
[1]
light years away from the Sun in the northern
constellation of
Auriga .
[8] It is visible to the naked eye as a dim, orange-hued star with an
apparent visual magnitude of 6.08.
[2] The star is moving further from the Earth with a heliocentric
radial velocity of +34 km/s,
[2] and it has a relatively high
proper motion , traversing the
celestial sphere at the rate of 0.181
arc seconds per annum.
[9] It is a probable member of the
Hercules stream .
[7]
This object is an aging
giant star with a
stellar classification of K0 III.
[4] At the age of around 3.6
[7] billion years it is a
red clump giant, which indicates it is on the
horizontal branch and is generating energy via
helium fusion at its
core .
[3] The star has 1.59
[5] times the
mass of the Sun and has expanded to 7
[6] times the
Sun's radius . It is radiating 18
[2] times the
Sun's luminosity from its swollen
photosphere at an
effective temperature of 4,834 K.
[5]
38 Aurigae has a faint
common proper motion companion at an
angular separation of ″ projected separation of AU red dwarf star with a class of M5.3.
[10]
References
^
a b c d e f
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 .^
a b c d e f g 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 Mishenina, T. V.; et al. (September 2006), "Elemental abundances in the atmosphere of clump giants", Astronomy and Astrophysics , 456 (3): 1109–1120,
arXiv :
astro-ph/0605615 ,
Bibcode :
2006A&A...456.1109M ,
doi :
10.1051/0004-6361:20065141 ,
S2CID
18764566 . ^
a b Eggen, O. J. (1962), "Space-velocity vectors for 3483 stars with proper motion and radial velocity", Royal Observatory Bulletin , 51 : 79,
Bibcode :
1962RGOB...51...79E . ^
a b c d e f g Liu, Yujuan; et al. (August 2010), "Stellar Parameters and Abundance Analysis of 58 Late G Giants", Publications of the Astronomical Society of Japan , 62 (4): 1071–1084,
Bibcode :
2010PASJ...62.1071L ,
doi :
10.1093/pasj/62.4.1071 . ^
a b 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 . ^
a b c Ramya, P.; et al. (August 2016), "Chemical compositions and kinematics of the Hercules stream", Monthly Notices of the Royal Astronomical Society , 460 (2): 1356–1370,
arXiv :
1604.04821 ,
Bibcode :
2016MNRAS.460.1356R ,
doi :
10.1093/mnras/stw852 . ^
a b
"38 Aur" .
SIMBAD .
Centre de données astronomiques de Strasbourg . Retrieved 2019-05-22 .
^ Lépine, Sébastien; Shara, Michael M. (March 2005), "A Catalog of Northern Stars with Annual Proper Motions Larger than 0.15" (LSPM-NORTH Catalog)", The Astronomical Journal , 129 (3): 1483–1522,
arXiv :
astro-ph/0412070 ,
Bibcode :
2005AJ....129.1483L ,
doi :
10.1086/427854 ,
S2CID
2603568 .
^ Dhital, Saurav; et al. (2010), "Sloan Low-mass Wide Pairs of Kinematically Equivalent Stars (SLoWPoKES): A Catalog of Very Wide, Low-mass Pairs", The Astronomical Journal , 139 (6): 2566–2586,
arXiv :
1004.2755 ,
Bibcode :
2010AJ....139.2566D ,
doi :
10.1088/0004-6256/139/6/2566 ,
S2CID
661494 .
