HD 100673

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Template:Short description Template:About-distinguish

HD 100673
Template:Location mark
Location of A Centauri (circled)
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Centaurus[1]
Right ascension Template:RA[2]
Declination Template:DEC[2]
Apparent magnitude (V) +4.62[1]
Characteristics
Evolutionary stage Main sequence[3]
Spectral type B9V[4]
U−B Template:Engvar −0.21[5]
B−V Template:Engvar −0.08[5]
Astrometry
Radial velocity (Rv)Script error: No such module "val".[1] km/s
Proper motion (μ) RA: Script error: No such module "val".[2] mas/yr
Dec.: Script error: No such module "val".[2] mas/yr
Parallax (π)7.65±0.22 mas[2]
DistanceTemplate:Rnd ± Template:Rnd ly
(Template:Rnd ± Template:Rnd pc)
Absolute magnitude (MV)−0.96[1]
Details
MassScript error: No such module "val".[3] Template:Solar mass
Radius4.7[6] Template:Solar radius
Luminosity306[3] Template:Solar luminosity
Surface gravity (log g)3.54[6] cgs
Temperature10,600[3] K
Metallicity [Fe/H]0.50[7] dex
Rotation0.733[8] days
Rotational velocity (v sin i)160[3] km/s
Age238[9] Myr
Metallicity [Fe/H]{{{metal_fe2}}} dex
Other designations
Template:Odlist[10]
Database references
SIMBADdata

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HD 100673, also known as A Centauri is a single[11] star in the southern constellation of Centaurus. It is blue-white in hue and is faintly visible to the naked eye with an apparent visual magnitude of +4.62.[1] The star is located at a distance of approximately 430 light-years from the Sun based on stellar parallax.[2] It appears to be drifting further away with a radial velocity of around +6 km/s.[1]

This is a rapidly rotating Be star, showing an emission-line spectrum on top of the normal absorption spectrum of the star, due to a circumstellar disk of ejected matter. It doesn't show any absorption lines from the disk.[12] It is a B-type main-sequence star with a stellar classification of B9V.[4]

References

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  1. ↑ a b c d e f Script error: No such module "Citation/CS1".
  2. ↑ a b c d e f Script error: No such module "Citation/CS1". Vizier catalog entry
  3. ↑ a b c d e Script error: No such module "Citation/CS1".
  4. ↑ a b Script error: No such module "citation/CS1".
  5. ↑ a b Script error: No such module "Citation/CS1".
  6. ↑ a b Script error: No such module "Citation/CS1".
  7. ↑ Script error: No such module "Citation/CS1".
  8. ↑ Script error: No such module "Citation/CS1".
  9. ↑ Script error: No such module "Citation/CS1".
  10. ↑ Template:Cite simbad
  11. ↑ Script error: No such module "Citation/CS1".
  12. ↑ Script error: No such module "Citation/CS1".

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External links

  • Wikisky image of HD 100673 (A Centauri)

Template:Stars of Centaurus

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