Epsilon Sextantis

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Template:Short description

ε Sextantis
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Sextans
Right ascension Template:RA[1]
Declination Template:DEC[1]
Apparent magnitude (V) 5.24[2]
Characteristics
Spectral type F0 IV[3]
U−B Template:Engvar +0.09[2]
B−V Template:Engvar +0.32[2]
Astrometry
Radial velocity (Rv)+15.2[4] km/s
Proper motion (μ) RA: −160.57[1] mas/yr
Dec.: +2.91[1] mas/yr
Parallax (π)16.86±0.28 mas[1]
DistanceTemplate:Rnd ± Template:Rnd ly
(Template:Rnd ± Template:Rnd pc)
Absolute magnitude (MV)2.42[5]
Details
Mass1.94[6] Template:Solar mass
RadiusScript error: No such module "val".[7] Template:Solar radius
LuminosityScript error: No such module "val".[7] Template:Solar luminosity
Surface gravity (log g)Script error: No such module "val".[8] cgs
TemperatureScript error: No such module "val".[8] K
Metallicity [Fe/H]Script error: No such module "val".[8] dex
Rotational velocity (v sin i)Script error: No such module "val".[5] km/s
Age1.1[6] Gyr
Metallicity [Fe/H]{{{metal_fe2}}} dex
Other designations
Template:Odlist[9]
Database references
SIMBADdata

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Epsilon Sextantis, Latinized from ε Sextantis, is a solitary,[10] yellow-white hued star in the equatorial constellation of Sextans. With an apparent visual magnitude of 5.24,[2] it is faintly visible to the naked eye on a dark night. The distance to this star, based upon an annual parallax shift of 16.86 mas,[1] is about 193 light years. It is drifting further away from the Sun with a radial velocity of +15 km/s.[4]

This is an F-type subgiant star with a stellar classification of F0 IV.[3] However, Malaroda (1975) gave a classification of F2 III,[11] which would indicate a more evolved giant star. It is estimated to have nearly double the mass of the Sun[6] with 3.1[7] times the Sun's radius. The star is around 1.1 billion years old and has a projected rotational velocity of 63.5 km/s.[5] It is radiating 23[7] times the luminosity of the Sun from its photosphere at an effective temperature of 7,166 K.[8]

References

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  2. ↑ a b c d Script error: No such module "citation/CS1".
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  4. ↑ a b Script error: No such module "citation/CS1".
  5. ↑ a b c Script error: No such module "citation/CS1".
  6. ↑ a b c Script error: No such module "citation/CS1".
  7. ↑ a b c d Template:Cite DR2
  8. ↑ a b c d 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".

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Template:Stars of Sextans

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