HD 129685
HD 129685 is a single star in the southern constellation of Centaurus. It is also known by its Bayer designation c2 Centauri, while "HD 129685" is the star's identifier in the "Henry Draper catalogue". This object has a white hue and is faintly visible to the naked eye with an apparent visual magnitude of +4.92. It is located at a distance of approximately 231 light years from the Sun based on parallax, and it has an absolute magnitude of 0.83. The star is drifting closer with a radial velocity of around −5 km/s.

Two different stellar classifications have been reported for this star. A class of A0Vn assigned by Abt and Morrell (1995) indicates it is a rapidly-rotating A-type main-sequence star, while a type of A0IVnn, according to Gray and Garrison (1987), suggests it is a somewhat more evolved subgiant star. It is around 239 million years old with 2.1 times the mass of the Sun, and is reported to be rotating close to its break-up velocity. The star is radiating 45 times the luminosity of the Sun from its photosphere at an effective temperature of 9,323 K.
Q523
star
Concept
Q8928
constellation
Concept
Q8844
Centaurus
CEL
Q105616
Bayer designation
Concept
Q111130
Henry Draper catalogue
MEDIA
Q124313
apparent visual magnitude
Concept
Q531
light year
Concept
Q525
Sun
CEL
Q906561
parallax
Concept
Q159653
absolute magnitude
Concept
Q240105
radial velocity
Concept
Q25377588
stellar classification
Concept
Q471805
A-type main-sequence star
Concept
Q6472
evolved
Concept
Q6227
subgiant star
Concept
Q180892
mass of the Sun
Concept
Q843877
luminosity of the Sun
Concept
Q6372
photosphere
Concept
Q854050
effective temperature
Concept
Q337975
HD 129685
CEL
Q337975
HD 129685
CEL
+2^^http://www.w3.org/2001/XMLSchema#decimal
2
NUMBER
++4.92^^http://www.w3.org/2001/XMLSchema#decimal
+4.92
NUMBER
+0.83^^http://www.w3.org/2001/XMLSchema#decimal
0.83
NUMBER
+5^^http://www.w3.org/2001/XMLSchema#decimal
5
NUMBER
0^^http://www.w3.org/2001/XMLSchema#decimal
0
NUMBER
+1995^^http://www.w3.org/2001/XMLSchema#decimal
1995
NUMBER
0^^http://www.w3.org/2001/XMLSchema#decimal
0
NUMBER
+1987^^http://www.w3.org/2001/XMLSchema#decimal
1987
NUMBER
+2.1^^http://www.w3.org/2001/XMLSchema#decimal
2.1
NUMBER
+45^^http://www.w3.org/2001/XMLSchema#decimal
45
NUMBER
instance of
constellation
instance of