Kappa2 Sculptoris

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Kappa2 Sculptoris
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Sculptor[1]
Right ascension Template:RA[2]
Declination Template:DEC[2]
Apparent magnitude (V) +5.42[3]
Characteristics
Evolutionary stage red giant branch[2]
Spectral type K2 III[4]
B−V Template:Engvar +1.35[3]
Astrometry
Radial velocity (Rv)Script error: No such module "val".[5] km/s
Proper motion (μ) RA: +5.058[2] mas/yr
Dec.: +12.900[2] mas/yr
Parallax (π)5.7132±0.0814 mas[2]
DistanceTemplate:Rnd ± Template:Rnd ly
(Template:Rnd ± Template:Rnd pc)
Absolute magnitude (MV)−1.46[1]
Details
Mass4.2[2] Template:Solar mass
Radius31[6] Template:Solar radius
Luminosity325[6] Template:Solar luminosity
Surface gravity (log g)1.34[7] cgs
Temperature4,393[6] K
Metallicity [Fe/H]−0.40[7] dex
Rotational velocity (v sin i)2.2[8] km/s
Age1.63[9] Gyr
Metallicity [Fe/H]{{{metal_fe2}}} dex
Other designations
Template:Odlist[10]
Database references
SIMBADdata

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Kappa2 Sculptoris, Latinized from κ2 Sculptoris, is a solitary,[11] orange-hued star in the southern constellation of Sculptor. It is faintly visible to the naked eye, with a combined apparent visual magnitude of +5.42.[3] Based upon an annual parallax shift of Script error: No such module "val". as measured from Earth,[2] it is located approximately 571 light years from the Sun.

This is an evolved K-type giant star with a stellar classification of K2 III.[4] It is radiating 325 times the solar luminosity from its photosphere at an effective temperature of 4,393.[6] There is a faint optical companion with visual magnitude 21.0 located at an angular separation of 44.2 arc seconds along a position angle of 289°, as of 2010.[12]

References

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Template:Stars of Sculptor