Kappa Cephei

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Template:Short description

Kappa Cephei
Observation data
Epoch J2000      Equinox J2000
Constellation Cepheus
Right ascension Template:RA[1]
Declination Template:DEC[1]
Apparent magnitude (V) 4.39[2]
Characteristics
Spectral type B9III + A7V[3]
U−B Template:Engvar -0.11[2]
B−V Template:Engvar -0.05[2]
Astrometry
Absolute magnitude (MV)−0.54[4]
Kap Cep A
Radial velocity (Rv)Script error: No such module "val".[5] km/s
Proper motion (μ) RA: +12.044[1] mas/yr
Dec.: +26.199[1] mas/yr
Parallax (π)10.0861±0.2468 mas[1]
DistanceTemplate:Rnd ± Template:Rnd ly
(Template:Rnd ± Template:Rnd pc)
Kap Cep B
Radial velocity (Rv)Script error: No such module "val".[5] km/s
Proper motion (μ) RA: Script error: No such module "val".[6] mas/yr
Dec.: Script error: No such module "val".[6] mas/yr
Parallax (π)9.9981±0.0290 mas[6]
DistanceTemplate:Rnd ± Template:Rnd ly
(Template:Rnd ± Template:Rnd pc)
Details
Kap Cep A
MassScript error: No such module "val".[7] Template:Solar mass
RadiusScript error: No such module "val".[8] Template:Solar radius
Luminosity191[4] Template:Solar luminosity
Surface gravity (log g)Script error: No such module "val".[8] cgs
TemperatureScript error: No such module "val".[8] K
Metallicity [Fe/H]−0.05[4] dex
AgeScript error: No such module "val".[7] Myr
Kap Cep B
Radius1.32[6] Template:Solar radius
Luminosity4.05[6] Template:Solar luminosity
Temperature7119[6] K
Metallicity [Fe/H]{{{metal_fe2}}} dex
Other designations
Template:Odlist[9]
Database references
SIMBADdata
B
C

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Kappa Cephei, Latinized from κ Cephei, is a binary star[10] system in the northern circumpolar constellation of Cepheus. It is visible to the naked eye as a faint, blue white-hued point of light with an apparent visual magnitude is 4.39.[11] The system is located approximately 323–326 light years distant from the Sun, based on parallax.

The two gravitationally-bound members of this system had an angular separation of Script error: No such module "val". along a position angle of 120°, as of 2015.[11] The primary, designated component A, has a stellar classification of B9III,[3] matching a blue giant. The magnitude 8.34 secondary, component B, is an A-type main-sequence star of class A7V.[3] A third star of 10th magnitude, BD+77 763, is listed as component C in the Washington Double Star Catalog although it is a background object unrelated to the other two. [11]

References

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  1. ↑ a b c d e Template:Cite DR2
  2. ↑ a b c Script error: No such module "Citation/CS1".
  3. ↑ a b c Script error: No such module "Citation/CS1".
  4. ↑ a b c Script error: No such module "citation/CS1".
  5. ↑ a b Script error: No such module "Citation/CS1".
  6. ↑ a b c d e f Template:Cite DR2
  7. ↑ a b Script error: No such module "Citation/CS1".
  8. ↑ a b c Script error: No such module "Citation/CS1".
  9. ↑ Template:Cite simbad
  10. ↑ Script error: No such module "Citation/CS1".
  11. ↑ a b c Script error: No such module "Citation/CS1".

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Template:Stars of Cepheus

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