Psi6 Aurigae

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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)Script error: No such module "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)Script error: No such module "val".
Eccentricity (e)Script error: No such module "val".
Periastron epoch (T)52556 ± 310 MJD
Argument of periastron (ω)
(secondary)
Script error: No such module "val".°
Semi-amplitude (K1)
(primary)
Script error: No such module "val". km/s
Details[7]
ψ6 Aur A
MassScript error: No such module "val". Template:Solar mass
RadiusScript error: No such module "val". Template:Solar radius
LuminosityScript error: No such module "val". Template:Solar luminosity
Surface gravity (log g)Script error: No such module "val". cgs
TemperatureScript error: No such module "val". K
Metallicity [Fe/H]Script error: No such module "val". dex
Rotational velocity (v sin i)+10[8] km/s
AgeScript error: No such module "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 Script error: No such module "val".,[2] it is approximately Script error: No such module "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 Script error: No such module "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

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  2. a b c d e Template:Cite Gaia DR3
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  7. a b Script error: No such module "citation/CS1". The values presented are for the RGB branch model.
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  9. Template:Cite simbad

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External links

Template:Stars of Auriga