Psi Capricorni

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Template:Short description

Psi Capricorni
Template:Location mark
Location of ψ Capricorni (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Capricornus
Right ascension Template:RA[1]
Declination Template:DEC[1]
Apparent magnitude (V) 4.13[2]
Characteristics
Spectral type F5 V[3]
U−B Template:Engvar −0.03[2]
B−V Template:Engvar +0.42[2]
Astrometry
Radial velocity (Rv)+20.3[4] km/s
Proper motion (μ) RA: −51.96[1] mas/yr
Dec.: −156.56[1] mas/yr
Parallax (π)68.13±0.27 mas[1]
DistanceTemplate:Rnd ± Template:Rnd ly
(Template:Rnd ± Template:Rnd pc)
Absolute magnitude (MV)3.33[5]
Details
MassScript error: No such module "val".[6] Template:Solar mass
RadiusScript error: No such module "val".[6] Template:Solar radius
LuminosityScript error: No such module "val".[6] Template:Solar luminosity
Surface gravity (log g)4.25[7] cgs
TemperatureScript error: No such module "val".[6] K
Metallicity [Fe/H]0.15[7] dex
Rotational velocity (v sin i)Script error: No such module "val".[8] km/s
AgeScript error: No such module "val".[6] Gyr
Metallicity [Fe/H]{{{metal_fe2}}} dex
Other designations
Template:Odlist[9]
Database references
SIMBADdata

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Psi Capricorni, Latinized from ψ Capricorni, is a single[10] star in the southern zodiac constellation of Capricornus. It is a yellow-white hued star that is faintly visible to the naked eye with an apparent visual magnitude of +4.13.[2] The distance to this star is approximately 47.9 light years based on parallax measurements,[1] and it is drifting further away with a radial velocity of +20 km/s.[4] The closest approach to the Sun occurred some 467,000 years ago at a separation of Script error: No such module "convert"..[11]

This object is an F-type main-sequence star with a stellar classification of F5 V.[3] It is 2.3 billion years old with 1.35 times the mass of the Sun.[6] The measured rotational velocity of this star is approximately 41 km/s[8] (the Sun has an equatorial rotation velocity of 2 km/s). Analysis of the line profile of the star's spectrum indicates that it is undergoing differential rotation, with the variation by latitude being similar to the Sun.[12] The star has 1.49 times the Sun's radius and is radiating 3.77 times the luminosity of the Sun from its photosphere at an effective temperature of 6,589 K.[6] It displays an infrared excess, suggesting the presence of an orbiting debris disk at a separation of Script error: No such module "val". and a temperature of 60 K.[13]

Chinese name

In Chinese, Script error: No such module "Lang". (Script error: No such module "Lang".), meaning Celestial Farmland, refers to an asterism consisting of ψ Capricorni, ω Capricorni, 3 Piscis Austrini, and 24 Capricorni.[14] Consequently, the Chinese name for ω Capricorni itself is Script error: No such module "Lang". (Script error: No such module "Lang"., Template:Langx).[15]

In R. H. Allen's version, this star represented the battle-axe Yue.[16]

References

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  1. ↑ a b c d e f Script error: No such module "citation/CS1".
  2. ↑ a b c d Script error: No such module "citation/CS1".
  3. ↑ a b Script error: No such module "citation/CS1".
  4. ↑ a b Script error: No such module "citation/CS1".
  5. ↑ Script error: No such module "citation/CS1".
  6. ↑ a b c d e f g Script error: No such module "citation/CS1".
  7. ↑ a b Script error: No such module "citation/CS1".
  8. ↑ a b Script error: No such module "citation/CS1".
  9. ↑ Template:Cite simbad
  10. ↑ Script error: No such module "citation/CS1".
  11. ↑ Script error: No such module "citation/CS1".
  12. ↑ Script error: No such module "citation/CS1".
  13. ↑ Script error: No such module "citation/CS1".
  14. ↑ Template:In lang 中國星座神話, written by 陳久金. Published by 台灣書房出版有限公司, 2005, Template:ISBN.
  15. ↑ Template:In lang AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 2006 年 7 月 3 日 Template:Webarchive
  16. ↑ Script error: No such module "citation/CS1".

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External links

  • Script error: No such module "citation/CS1".
  • Script error: No such module "citation/CS1".

Template:Stars of Capricornus

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