CH Crucis

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CH Crucis

A blue band light curve for CH Crucis, plotted from data published by Balona et al. (1992)[1]
Observation data
Epoch J2000      Equinox J2000
Constellation Crux
Right ascension 12h 41m 56.56824s[2]
Declination −59° 41′ 08.9564″[2]
Apparent magnitude (V) 4.91[3]
Characteristics
Spectral type B5III[4] or B6IV[5]
U−B color index −0.37[6]
B−V color index −0.044±0.03[3]
Variable type γ Cas?[7]
Distance
780 ± 30 ly
(238 ± 9 pc)
Absolute magnitude (MV)−2.41[3]
Details
Myr
G 39 Crucis[12][13]
Database references
SIMBADdata

CH Crucis is a solitary

Sco OB2 association.[15]

This is a conventional

B-type star that is evolving off the main sequence.[8] Samus et al. (2017) have tentatively classified it as a Gamma Cassiopeiae variable that ranges in brightness from magnitude 4.88 down to 5.7.[7]

CH Crucis has 5.3

oblate shape with an equatorial bulge that is an estimated 18% larger than the polar radius.[10]

References

  1. Bibcode:1992A&AS...92..533B
    . Retrieved 18 December 2021.
  2. ^
    doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR
    .
  3. ^
    S2CID 119257644
    .
  4. ^
    Bibcode:1975mcts.book.....H
    .
  5. ^
    doi:10.1086/150069
    .
  6. ^ "39 Crucis, a blue subgiant star in Crux", Ashland Astronomy Studio, archived from the original on 2013-04-14, retrieved 2012-08-23
  7. ^
    S2CID 125853869
    .
  8. ^
    S2CID 55586789
    .
  9. ^
    S2CID 74872624
    .
  10. ^
    S2CID 119273474
    .
  11. ^ "HIP 61966", Wolfram Alpha, retrieved 2012-08-23
  12. ^
    Bibcode:1879RNAO....1.....G
    , retrieved 2012-05-08.
  13. ^ "CH Cru". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-08-15.
  14. S2CID 14878976
    .
  15. doi:10.1046/j.1365-8711.2000.03192.x
    .
  16. ^
    doi:10.1051/0004-6361:20053008
    .
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