B/vsx       AAVSO Variable Star Index VSX            (Watson+, 2006-2014)
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The AAVSO Variable Star Index (Version 2009-May)
    Watson C., Henden A.A., Price A.
   <AAVSO (2009)>
   =2006SASS...25...47W
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ADC_Keywords: Stars, variable ;

Description:
    This file contains Galactic stars known or suspected to be variable.
    It lists all stars that have an entry in the AAVSO International 
    Variable Star Index (VSX; http://www.aavso.org/vsx).  

    The database consisted intitally of the General Catalogue of Variable Stars
    (GCVS) and the New Catalogue of Suspected Variables (NSV) and was then
    supplemented with a large number of variable star catalogues, as well as 
    individual variable star discoveries or variables found in the literature.
    Effort has also been invested to update the entries with the latest
    information regarding position, type and period and to remove duplicates.
    The VSX database is being continually updated and maintained.

    For historical reasons some objects outside of the Galaxy have been
    included.

See also:
   B/gcvs	General Catalogue of Variable Stars (Samus+ 2007-2009)
   http://www.aavso.org/ : the American Associatation of Variable Star Observers


File Summary:
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 FileName   Lrecl  Records   Explanations
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ReadMe         80        .   This file
vsx.dat       153   ??????   Variable stars
refs.dat       27   ??????   Bibliography (references) of VSX stars
vsx_id.dat     58     ????   Stars having a "VSX" name
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Byte-by-byte Description of file: vsx.dat
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   Bytes Format Units   Label     Explanations
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   1-  7  I7    ---     OID       Internal identifier, can be used to link out
                                  to the VSX database (1)
   9- 38  A30   ---     Name      Variable identifier
  40- 40  I1    ---     VarFlag   Variability flag (2)
  42- 50  F9.5  deg     RAdeg     Right ascension (J2000)
  52- 60  F9.5  deg     DEdeg     Declination (J2000)
  62- 91  A30   ---     Type      Variability type (3)
  93-107  A15   ---     MagMax    Magnitude at maximum, including passband
 109-123  A15   ---     MagMin    Magnitude at minimum or amplitude (between
                                  brackets), including passband
 125-136  F12.4 d       Epoch     Epoch of maximum or minimum (HJD)
 137-137  A1    ---     EpochUnc  Uncertainty flag (:) on epoch
 139-153  A15   ---     Per       Period of the variable in days
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Note (1) To get the VSX URL, add the OID to 
    http://www.aavso.org/vsx/index.php?view=detail.top&oid=
Note (2) 0 = Variable, 1 = Suspected variable, 2 = Constant or non-existing
Note (3) For a complete list of types, see 
    http://www.aavso.org/vsx/index.php?view=about.vartypes 



Byte-by-byte Description of file: refs.dat
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   Bytes Format Units   Label     Explanations
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   1-  7  I7    ---     OID      Internal identifier, as in file "vsx.dat"
   9- 27  A19   ---     Bibcode  Reference of a paper dealing with the object



Byte-by-byte Description of file: vsx_id.dat
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   Bytes Format Units   Label     Explanations
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   1-  3  A3    ---     ---      [VSX]
   5- 20  A16   ---     VSX      VSX name (JHHMMSS.S+DDMMSS)
      21  A1    ---     ---      [=]
  22- 28  I7    ---     OID      Internal identifier, as in file "vsx.dat"
      29  A1    ---     ---      [=]
  30- 58  A29   ---     Name     Variable star identifier, as in file "vsx.dat"
                                 (when this identifier is not a VSX name)

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(End)

