Chi Cassiopeiae

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Template:Short description

χ Cassiopeiae
Template:Location mark
Location of χ Cassiopeiae (circled)
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Cassiopeia[1]
Right ascension Template:RA[2]
Declination Template:DEC[2]
Apparent magnitude (V) +4.696[3]
Characteristics
Evolutionary stage red clump[4]
Spectral type G9 IIIb[5]
U−B Template:Engvar +0.762[3]
B−V Template:Engvar +0.997[3]
Astrometry
Radial velocity (Rv)Script error: No such module "val".[6] km/s
Proper motion (μ) RA: Script error: No such module "val".[2] mas/yr
Dec.: Script error: No such module "val".[2] mas/yr
Parallax (π)15.67±0.39 mas[2]
DistanceTemplate:Rnd ± Template:Rnd ly
(Template:Rnd ± Template:Rnd pc)
Absolute magnitude (MV)+0.52[7]
Details[7]
Mass2.04 Template:Solar mass
RadiusScript error: No such module "val".[8] Template:Solar radius
Luminosity67.6 Template:Solar luminosity
Surface gravity (log g)2.21 cgs
Temperature4,746 K
Metallicity [Fe/H]−0.34 dex
Rotational velocity (v sin i)Script error: No such module "val".[9] km/s
Age1.0 Gyr
Metallicity [Fe/H]{{{metal_fe2}}} dex
Other designations
Template:Odlist[10]
Database references
SIMBADdata

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File:Chi Cassiopeiae.jpg
χ Cassiopeiae in optical light

Chi Cassiopeiae (χ Cassiopeiae) is a solitary,[11] yellow-hued star in the constellation Cassiopeia. It is visible to the naked eye with an apparent visual magnitude of +4.7.[3] Based upon an annual parallax shift of 15.67 mas as seen from Earth,[2] this system is located roughly 208 light years from the Sun. At that distance, the visual magnitude is diminished by an extinction of 0.18 due to interstellar dust.[6]

With a stellar classification of G9 IIIb,[5] it has the spectrum of an evolved, G-type giant star. It is a red clump star that it is generating energy through helium fusion at its core,[4] with an estimated age of a billion years.[7] The star has about double the mass of the Sun[7] and has expanded to 10.3 times the Sun's radius.[8] It is radiating 67.6 times the Sun's luminosity from its photosphere at an effective temperature of 4,746 K.[7]

References

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

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Template:Stars of Cassiopeia

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