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Star in the constellation Centaurus
HD 102350 is a single
[9]
star in the
constellation
Centaurus . It has a yellow hue and is visible to the naked eye with an
apparent visual magnitude of 4.11.
[2] The distance to this star is approximately 390
light years based on
parallax , but it is drifting closer with a
radial velocity of −3 km/s.
[2] It has an
absolute magnitude of −1.51.
[6]
This is an aging
bright giant star with a
stellar classification of G0II.
[3] It is a candidate
Cepheid variable ,
[5] but
Hipparcos photometry found its brightness to be constant.
[10] The star has expanded to 22
[7] times the
radius of the Sun and is radiating 283
[7] times the
Sun's luminosity from its enlarged
photosphere at an
effective temperature of 5,051 K.
[7] It has a magnitude 13.0
visual companion at an
angular separation of 24.3
″ along a
position angle of 313° relative to the brighter component, as of 2000.
[11]
HD 102350 is listed in the
Washington Double Star Catalog as having a 13th magnitude companion about 25
″ away,
[12] but it is a distant background object unrelated to HD 102350.
[13]
[9]
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
c
d
e 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.; et al. (2011). "A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun". Monthly Notices of the Royal Astronomical Society . 410 : 190–200.
arXiv :
1007.4883 .
Bibcode :
2011MNRAS.410..190T .
doi :
10.1111/j.1365-2966.2010.17434.x .
S2CID
118629873 .
^ Houk, Nancy (1979). Michigan catalogue of two-dimensional spectral types for the HD stars . Vol. 1. Ann Arbor, Michigan: Department of Astronomy, University of Michigan.
Bibcode :
1978mcts.book.....H .
^
a
b Samus, N. N.; et al. (2017). "General Catalogue of Variable Stars". Astronomy Reports . 5.1. 61 (1): 80–88.
Bibcode :
2017ARep...61...80S .
doi :
10.1134/S1063772917010085 .
S2CID
125853869 .
^
a
b Cardini, D. (January 2005). "Mg II chromospheric radiative loss rates in cool active and quiet stars". Astronomy and Astrophysics . 430 : 303–311.
arXiv :
astro-ph/0409683 .
Bibcode :
2005A&A...430..303C .
doi :
10.1051/0004-6361:20041440 .
S2CID
12136256 .
^
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 .
^
"HD 102350" .
SIMBAD .
Centre de données astronomiques de Strasbourg . Retrieved 2018-07-27 .
^
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 .
^ Adelman, S. J. (2001).
"Research Note Hipparcos photometry: The least variable stars" . Astronomy and Astrophysics . 367 : 297–298.
Bibcode :
2001A&A...367..297A .
doi :
10.1051/0004-6361:20000567 .
^ Mason, B. D.; et al. (2014).
"The Washington Visual Double Star Catalog" . The Astronomical Journal . 122 : 3466–3471.
Bibcode :
2001AJ....122.3466M .
doi :
10.1086/323920 .
^ Mason, Brian D.; Wycoff, Gary L.; Hartkopf, William I.; Douglass, Geoffrey G.; Worley, Charles E. (2001).
"The 2001 US Naval Observatory Double Star CD-ROM. I. The Washington Double Star Catalog" . The Astronomical Journal . 122 (6): 3466–3471.
Bibcode :
2001AJ....122.3466M .
doi :
10.1086/323920 .
^
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 .