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J/A+AS/125/471      Light curves of the triple system V906 Sco (Vaz+ 1997)
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Four-colour photometry of eclipsing binaries.
XXXVIII. Light curves of the triple system V906 Scorpii
       Vaz L.P.R., Andersen J., Clausen J.V., Helt B.E., Garcia J.M.,
       Gimenez A., Alencar S.H.P.
      <Astron. Astrophys. Suppl. Ser. 125, 471 (1997)>
      =1997A&AS..125..471V      (SIMBAD/NED BibCode)
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ADC_Keywords: Binaries, eclipsing ; Photometry, uvby
Keywords: Stars: binaries: eclipsing - stars: individual: V906 Sco

Description:
    Complete uvby light curves of the detached triple-lined late B-type
    eclipsing binary V906 Scorpii, obtained from 1987 to 1991, are
    presented. A detailed photometric analysis based on these observations
    and on new spectroscopic material yields accurate masses and radii
    (errors <2%) for the components, confirms that the system is member of
    NGC 6475 (Messier 7) and is published separately (Alencar et al.,
    1997A&A...326..709A)

Objects:
    ----------------------------------------------------------
       RA   (2000)   DE    Designation(s)
    ----------------------------------------------------------
    17 53 54.7 -34 45 09   V906 Sco  = HD 162724
    17 53 34.8 -34 51 55   HD 162631
    ----------------------------------------------------------

File Summary:
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  FileName   Lrecl  Records   Explanations
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ReadMe          80        .   This file
table2          63     1117   Magnitude differences V906 Sco - HD 162631
                              obtained from 1987 to 1991 (instrumental system)
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See also:
   J/A+AS/101/49  : V Crateris ubvy photometry (Liu 1993)
   J/A+AS/101/563 : GG Lupi ubvy photometry (Clausen+ 1993)
   J/A+AS/109/425 : AO Velorum ubvy photometry (Clausen+ 1995)
   J/A+AS/112/123 : LZ Centauri ubvy photometry (Vaz+ 1995)
   J/A+AS/115/315 : V539 Arae ubvy photometry (Clausen+ 1996)

Byte-by-byte Description of file: table2
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   Bytes Format Units   Label     Explanations
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   2- 14  F13.5 d       HJD       Heliocentric Julian Day
  16- 21  F6.3  mag     ymag      Magnitude y
  23- 28  F6.3  mag     b-y       Colour index b-y
  30- 35  F6.3  mag     m1        Stroemgren index m1
  37- 42  F6.3  mag     c1        Stroemgren index c1
  44- 49  F6.3  mag     bmag      Magnitude b
  51- 56  F6.3  mag     vmag      Magnitude v
  58- 63  F6.3  mag     umag      Magnitude u
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Acknowledgements: Luiz Paulo R. Vaz <vaz@suya.fisica.ufmg.br>

References:
  Alencar S.H.P., Vaz L.P.R., Helt B.E., 1997A&A...326..709A
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(End)                                         Patricia Bauer [CDS]   01-Apr-1997