Kappa Volantis

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Template:Short description

κ Volantis
Template:Location mark
Location of κ Volantis
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Volans
κ1 Vol
Right ascension Template:RA[1]
Declination Template:DEC[1]
Apparent magnitude (V) 5.37[2]
κ2 Vol
Right ascension Template:RA[1]
Declination Template:DEC[1]
Apparent magnitude (V) 5.65[2]
Characteristics
κ1 Vol
Spectral type B9III/IV[3]
U−B Template:Engvar −0.31[2]
B−V Template:Engvar −0.06[2]
κ2 Vol
Spectral type B9/A0IV[3]
U−B Template:Engvar −0.31[2]
B−V Template:Engvar −0.10[2]
Astrometry
κ1 Vol
Radial velocity (Rv)36.0[4] km/s
Proper motion (μ) RA: −16.89[1] mas/yr
Dec.: +36.26[1] mas/yr
Parallax (π)7.50±0.35 mas[1]
DistanceTemplate:Rnd ± Template:Rnd ly
(Template:Rnd ± Template:Rnd pc)
Absolute magnitude (MV)−0.29[5]
κ2 Vol
Radial velocity (Rv)−6.50[4] km/s
Proper motion (μ) RA: −17.71[1] mas/yr
Dec.: +34.10[1] mas/yr
Parallax (π)7.79±0.21 mas[1]
DistanceTemplate:Rnd ± Template:Rnd ly
(Template:Rnd ± Template:Rnd pc)
Absolute magnitude (MV)+0.09[5]
Details
κ1 Vol
MassScript error: No such module "val".[6] Template:Solar mass
RadiusScript error: No such module "val".[7] Template:Solar radius
Luminosity129[8] Template:Solar luminosity
Surface gravity (log g)Script error: No such module "val".[6] cgs
Temperature9,884[8] K
Metallicity [Fe/H]Script error: No such module "val".[6] dex
Rotational velocity (v sin i)80[9] km/s
κ2 Vol
Mass3.03[10] Template:Solar mass
Radius3.01[10] Template:Solar radius
Luminosity124[8] Template:Solar luminosity
Surface gravity (log g)4.19[10] cgs
Temperature11,682[8] K
Metallicity [Fe/H]Script error: No such module "val".[11] dex
Rotation1.29641[12] d
Rotational velocity (v sin i)2[13] km/s
Age120[10] Myr
Other designations
Template:Odlist[14]
κ1 Vol: Template:Odlist[14]
κ2 Vol: CPD−71° 678, HD 71066, HIP 40834, HR 3302, SAO 256499.[15]
Database references
SIMBADκ1 Vol
κ2 Vol

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Kappa Volantis, Latinized from κ Volantis, is a quadruple star system[16] in the southern constellation of Volans. The primary component has an apparent visual magnitude of 5.37, while the secondary companion is magnitude 5.65;[2] individually, both a bright enough to be faintly visible to the naked eye. Based upon parallax measurements, the stars appear to be around 420−430 light-years from the Sun.

Properties

The brightest component, κ1 Volantis, is a blue-white B-type star with a stellar classification showing characteristics of a both a subgiant and giant star. It has an unseen companion, and the pair form a single-lined spectroscopic binary.[16] The star has nearly three times the Sun's mass, and 3.8 times its radius. It radiates at 129 times the Sun's luminosity from its photosphere at an effective temperature of Script error: No such module "val"..

Companion

Separated from κ1 Volantis by 65 arcseconds, κ2 Volantis is a white subgiant star that falls between a B-type and A-type classification. The system's fourth component, κ Volantis C, is a magnitude +8.5 star 37.7 arcseconds away from κ2 Volantis.

References

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  5. ↑ a b Script error: No such module "citation/CS1".
  6. ↑ a b c Script error: No such module "citation/CS1".
  7. ↑ Script error: No such module "citation/CS1".
  8. ↑ a b c d Script error: No such module "citation/CS1".
  9. ↑ Script error: No such module "citation/CS1".
  10. ↑ a b c d Script error: No such module "citation/CS1".
  11. ↑ Script error: No such module "citation/CS1".
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  13. ↑ Script error: No such module "citation/CS1".
  14. ↑ a b Script error: No such module "citation/CS1".
  15. ↑ Script error: No such module "citation/CS1".
  16. ↑ a b Script error: No such module "citation/CS1".

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Template:Stars of Volans

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