Beta Indi

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Template:Short description

Beta Indi
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Indus
Right ascension Template:RA[1]
Declination Template:DEC[1]
Apparent magnitude (V) 3.67[2]
Characteristics
Spectral type K1II[3] or K0III[4]
U−B Template:Engvar +1.23[5]
B−V Template:Engvar Script error: No such module "val".[2]
Astrometry
Radial velocity (Rv)Script error: No such module "val".[2] km/s
Proper motion (μ) RA: 21.06[1] mas/yr
Dec.: −24.75[1] mas/yr
Parallax (π)5.41±0.73 mas[1]
Distanceapprox. Template:Rnd ly
(approx. Template:Rnd pc)
Absolute magnitude (MV)−2.664[6]
Details
MassScript error: No such module "val".[7] Template:Solar mass
RadiusScript error: No such module "val".[8] Template:Solar radius
LuminosityScript error: No such module "val".[8] Template:Solar luminosity
Surface gravity (log g)0.800[9] cgs
TemperatureScript error: No such module "val".[8] K
Metallicity [Fe/H]−0.06[9] dex
AgeScript error: No such module "val".[7] Myr
Metallicity [Fe/H]{{{metal_fe2}}} dex
Other designations
Template:Odlist[10]
Database references
SIMBADdata

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Beta Indi, Latinized from β Indi, is the second brightest star in the southern constellation of Indus.[10] It is visible to the naked eye as a faint, orange-hued point of light with an apparent visual magnitude of 3.67.[2] The star is located approximately 600 light years from the Sun, based on parallax, but is drifting closer with a radial velocity of −5 km/s.[2]

The stellar classification of this star is K1II,[3] matching an evolved bright giant. Earlier it had been categorized as an ordinary giant with a class of K0III.[4] It is a hybrid giant with both a hot stellar corona and cool stellar winds, and is a weak X-ray source with a flux measured at Script error: No such module "val"..[11] Having consumed the supply of hydrogen at its core, this star has expanded off the main sequence and now has about 56[8] times the girth of the Sun. It is 53 million years old with 6.7 times the mass of the Sun.[7] The star is radiating 1,183 times the Sun's luminosity from its enlarged photosphere at an effective temperature of 4,541 K.[8]

β Indi has a visual companion, CCDM J20548-5827B, with an apparent visual magnitude of approximately 12.5. As of 2015, it lies at an angular separation of Script error: No such module "val". along a position angle of 100° from the brighter component.[12]

References

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  1. ↑ a b c d e Script error: No such module "citation/CS1".
  2. ↑ a b c d e Script error: No such module "citation/CS1".
  3. ↑ a b Script error: No such module "citation/CS1".
  4. ↑ a b Script error: No such module "citation/CS1".
  5. ↑ Script error: No such module "citation/CS1". ID V/50. Accessed on line September 23, 2008.
  6. ↑ Script error: No such module "citation/CS1".
  7. ↑ a b c Script error: No such module "citation/CS1".
  8. ↑ a b c d e Template:Cite DR2
  9. ↑ a b Script error: No such module "citation/CS1".
  10. ↑ a b Template:Cite simbad
  11. ↑ Script error: No such module "citation/CS1".
  12. ↑ Script error: No such module "citation/CS1".

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Template:Stars of Indus

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