Psi6 Aurigae

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Template:Short description

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Psi6 Aurigae
Template:Location mark
Location of ψ6 Aurigae (circled)
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Auriga[1]
Right ascension Template:RA[2]
Declination Template:DEC[2]
Apparent magnitude (V) +5.22[3]
Characteristics
Spectral type K0.5 III[4]
U−B Template:Engvar +1.04[3]
B−V Template:Engvar +1.11[3]
Variable type Constant[1]
Astrometry
Radial velocity (Rv)Template:Val[5] km/s
Proper motion (μ) RA: +3.988 mas/yr[2]
Dec.: +4.748 mas/yr[2]
Parallax (π)8.0121±0.1402 mas[2]
DistanceTemplate:Rnd ± Template:Rnd ly
(Template:Rnd ± Template:Rnd pc)
Absolute magnitude (MV)+0.01[1]
Orbit[6]
Period (P)Template:Val
Eccentricity (e)Template:Val
Periastron epoch (T)52556 ± 310 MJD
Argument of periastron (ω)
(secondary)
Template:Val°
Semi-amplitude (K1)
(primary)
Template:Val km/s
Details[7]
ψ6 Aur A
MassTemplate:Val Template:Solar mass
RadiusTemplate:Val Template:Solar radius
LuminosityTemplate:Val Template:Solar luminosity
Surface gravity (log g)Template:Val cgs
TemperatureTemplate:Val K
Metallicity [Fe/H]Template:Val dex
Rotational velocity (v sin i)+10[8] km/s
AgeTemplate:Val Gyr
Metallicity [Fe/H]{{{metal_fe2}}} dex
Other designations
Template:Odlist[9]
Database references
SIMBADdata

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Psi6 Aurigae is a spectroscopic binary[6] star system in the northern constellation of Auriga. Its name is a Bayer designation that is Latinized from ψ6 Aurigae, and abbreviated Psi6 Aur or ψ6 Aur. This system is visible as a dim, naked eye star with an apparent visual magnitude of +5.22.[3] Based upon a measured annual parallax shift of Template:Val,[2] it is approximately Template:Convert distant from the Earth. The system is drifting closer to the Sun with a radial velocity of −6.5 km/s.[5]

This is a single-lined spectroscopic binary star system with an orbital period of Template:Convert and an eccentricity of 0.044.[6] The visible component is an evolved K-type giant star with a stellar classification of K0.5 III.[4] It is most likely (78% chance) on the red giant branch and is around 1.55 billion years old. As such, it has an estimated double the mass of the Sun and about 18 times the Sun's radius. The star is radiating about 123 times the Sun's luminosity from its photosphere at an effective temperature of 4,574 K.[7]

References

Template:Reflist

External links

Template:Stars of Auriga

  1. a b c Cite error: Invalid <ref> tag; no text was provided for refs named Anderson2012
  2. a b c d e Cite error: Invalid <ref> tag; no text was provided for refs named GaiaDR3
  3. a b c d Cite error: Invalid <ref> tag; no text was provided for refs named Argue1966
  4. a b Cite error: Invalid <ref> tag; no text was provided for refs named Keenan_McNeil_1989
  5. a b Cite error: Invalid <ref> tag; no text was provided for refs named deBruijne2012
  6. a b c Cite error: Invalid <ref> tag; no text was provided for refs named Griffin2010
  7. a b Cite error: Invalid <ref> tag; no text was provided for refs named reffert2015
  8. Cite error: Invalid <ref> tag; no text was provided for refs named Bernacca1970
  9. Cite error: Invalid <ref> tag; no text was provided for refs named SIMBAD