HD 81101

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HD 81101
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Carina
Right ascension Template:RA[1]
Declination Template:DEC[1]
Apparent magnitude (V) 4.79[2]
Characteristics
Spectral type G6III[3]
B−V Template:Engvar Script error: No such module "val".[2]
Astrometry
Radial velocity (Rv)Script error: No such module "val".[1] km/s
Proper motion (μ) RA: −27.15[1] mas/yr
Dec.: −14.18[1] mas/yr
Parallax (π)14.4946±0.1593 mas[1]
DistanceTemplate:Rnd ± Template:Rnd ly
(Template:Rnd ± Template:Rnd pc)
Absolute magnitude (MV)0.51[2]
Details
Mass1.95[4] Template:Solar mass
RadiusScript error: No such module "val".[1] Template:Solar radius
LuminosityScript error: No such module "val".[1] Template:Solar luminosity
Surface gravity (log g)Script error: No such module "val".[5] cgs
TemperatureScript error: No such module "val".[1] K
Metallicity [Fe/H]Script error: No such module "val".[5] dex
Age2.04[4] Gyr
Metallicity [Fe/H]{{{metal_fe2}}} dex
Other designations
Template:Odlist[6]
Database references
SIMBADdata

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HD 81101 is a single[7] star in the southern constellation of Carina. It has the Bayer designation k Carinae, while HD 81101 is the star's designation in the Henry Draper catalogue. The star has a yellow hue and is faintly visible to the naked eye with an apparent visual magnitude of 4.79.[2] It is located at a distance of approximately 225 light years from the Sun based on parallax.[1] This object is drifting further away with a radial velocity of +51 km/s,[1] having come to within Script error: No such module "convert". of the Sun some 1.4 million years ago.[8]

This is an aging giant star with a stellar classification of G6III,[3] having exhausted the supply of hydrogen at its core then cooled and expanded away from the main sequence. It is two[4] billion years old with 1.95[4] times the mass of the Sun and has expanded to 11[1] times the Sun's radius. The star is radiating 65[1] times the luminosity of the Sun from its swollen photosphere at an effective temperature of 4,908 K.[1] Being a member of the old disk population,[9] the metallicity of the star's stellar atmosphere is much lower than solar.[5]

References

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  6. ↑ Template:Cite simbad
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  8. ↑ Script error: No such module "citation/CS1".
  9. ↑ Script error: No such module "citation/CS1".

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Template:Stars of Carina

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