S Virginis

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S Virginis
File:SVirLightCurve.png
The visual band light curve of S Virginis, from AAVSO data[1]
Observation data
Epoch J2000      Equinox J2000
Constellation Virgo[2]
Right ascension Template:RA[3]
Declination Template:DEC[3]
Apparent magnitude (V) 6.3 - 13.2[4]
Characteristics
Evolutionary stage AGB[5]
Spectral type M6IIIe-M9.5e[4]
U−B Template:Engvar +2.1[6]
B−V Template:Engvar +0.74[6]
Variable type Mira[4]
Astrometry
Radial velocity (Rv)9.60[7] km/s
Proper motion (μ) RA: Script error: No such module "val".[3] mas/yr
Dec.: Script error: No such module "val".[3] mas/yr
Parallax (π)1.3709±0.3737 mas[3]
Distanceapprox. Template:Rnd ly
(approx. Template:Rnd pc)
Details
Mass3.6[8] Template:Solar mass
Radius435[9] Template:Solar radius
Luminosity38.174[10] Template:Solar luminosity
Surface gravity (log g)2.29[8] cgs
Temperature3,283[11] K
Metallicity [Fe/H]−0.24[8] dex
Metallicity [Fe/H]{{{metal_fe2}}} dex
Other designations
S Virginis, BD−06°3837, HIP 66100, GC 18312, HR 5101, AAVSO 1327-06, GCRV 8027, SAO 139403, HD 117833[12]
Database references
SIMBADdata

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S Virginis is a Mira-type variable star in the constellation Virgo. Located approximately Script error: No such module "convert". distant,[3] it varies between magnitudes 6.3 and 13.2 over a period of approximately 375 days.[4]

References

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