Sigma Capricorni

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Sigma Capricorni
Location of σ Capricorni (circled)
Observation data
ICRS
)
Constellation Capricornus
Right ascension 20h 19m 23.60402s[1]
Declination −19° 07′ 06.6967″[1]
Apparent magnitude (V) +5.31[2]
Characteristics
Spectral type K2 III[3]
U−B color index +1.56[2]
B−V color index +1.43[2]
Distance
1,070 ± 40 ly
(330 ± 10 pc)
Absolute magnitude (MV)−2.38[5]
Details
Myr
HR 7761, SAO 163445, WDS J20194-1907A[7]
Database references
SIMBADdata

Sigma Capricorni,

light years away from the Sun based on parallax, but is drifting closer with a radial velocity of −9.6 km/s.[1]

This object is an

luminosity of the Sun from its swollen photosphere at an effective temperature of 4,292 K.[1]

A magnitude 9.43

″ along a position angle of 179°, as of 2016.[9]

References

  1. ^
    doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR
    .
  2. ^
    doi:10.1086/190856
    .
  3. ^
    Bibcode:1988mcts.book.....H
    .
  4. ^
    S2CID 18759600
    .
  5. S2CID 119257644
    .
  6. ^
    S2CID 118629873
    .
  7. ^ a b "* sig Cap". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2017-05-12.{{cite web}}: CS1 maint: postscript (link)
  8. S2CID 14878976
    .
  9. doi:10.1086/323920
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