71 Tauri

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Template:Short description

71 Tauri
File:V777TauLightCurve.png
A light curve for V777 Tauri, plotted from TESS data[1]
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Taurus
Right ascension Template:RA[2]
Declination Template:DEC[2]
Apparent magnitude (V) +4.48[3]
Characteristics
Spectral type F0 V[4]
U−B Template:Engvar +0.13[3]
B−V Template:Engvar +0.25[3]
Variable type δ Sct[5]
Astrometry
Radial velocity (Rv)+38.3[6] km/s
Proper motion (μ) RA: +85.393[2] mas/yr
Dec.: −14.869[2] mas/yr
Parallax (π)22.4141±0.4969 mas[2]
DistanceTemplate:Rnd ± Template:Rnd ly
(Template:Rnd ± Template:Rnd pc)
Absolute magnitude (MV)1.10[7]
Details
Mass1.94[7] Template:Solar mass
Radius3.34[4] Template:Solar radius
Surface gravity (log g)3.73[8] cgs
Temperature7,543[4] K
Rotation14.2[7] d
Rotational velocity (v sin i)192[7] km/s
Age966[8] Myr
Metallicity [Fe/H]{{{metal_fe2}}} dex
Other designations
Template:Odlist[9]
Database references
SIMBADdata

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71 Tauri is a suspected triple star[10] system in the zodiac constellation Taurus, located 146 light years from the Sun.[2] It is visible to the naked eye as a faint, yellow-white hued star with an apparent visual magnitude of +4.48.[3] The star is moving further away from the Earth with a heliocentric radial velocity of +38 km/s.[6] It is a member of the Hyades open cluster.[11]

The primary component is an F-type main-sequence star with a stellar classification of F0 V.[4] It is a Delta Scuti variable with an amplitude of 0.02 in magnitude and a frequency of 0.16 d−1.[5] This star has about 1.94[7] times the mass of the Sun and 3.34[4] times the Sun's radius. It has a projected rotational velocity of 192 km s−1, for an estimated rotation period of 14.2 days.[7] Extreme ultraviolet flares have been observed coming from this star's hot corona,[4] and it is the second brightest X-ray source in the Hyades.[11]

References

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  11. ↑ a b Script error: No such module "citation/CS1".

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Template:Stars of Taurus

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