ADC/CDS Standard Document for Catalog:
/catalogs/2/2158A/

IMPORTANT NOTICE:

Superseded          uvby-beta Catalogue, 1989 version   (Hauck+ 1990)
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uvby-beta Photoelectric Photometric Catalogue (1989 version)
     Hauck B., Mermilliod M.
    <Astron.Astrophys.Suppl. Ser. 86, 107 (1990)>
    =1990A&AS...86..107H
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ADC_Keywords: Photometry, uvby, beta

Description:
    The catalog is a compilation of uvby and H-beta photoelectric
    photometric data published in the literature through the end of 1988.
    It supersedes an earlier edition by the same compilers
    (1985A&AS...60...61H). All individual observations are given in one
    file, while a separate file contains a single set of homogeneous means
    for each object. Other files give the complete set of bibliographical
    references and a definition of the Geneva coded numbering system used
    to identify the stars. The compilation includes 69190 observations of
    44896 stars. The homogeneous means were computed using the method of
    Lindemann and Hauck (1973A&AS...11..119L). This method refers each
    source back to the standard system and compares all stars in common.
    Weights are computed based on this comparison, then used when the
    final means are computed for each star. In general, these means will
    be the best values for each object but may not be suitable for all
    applications, especially when variability is suspected. The data in
    the observations file include coded number (identifier), double and
    variable codes, V magnitude, uvby, beta indices and numbers of
    observations, and reference code. The homogeneous means file contains
    only the object identifier and the homogeneous indices of the uvby,
    beta system. (No V magnitudes are included in the means file.)

See also:
   Superseded by catalog 2215 in December 1997:

   2215 :              uvby-beta Catalogue             (Hauck+ 1997)
   at URL ftp://adc.astro.umd.edu/pub/adc/archives/catalogs/2/2215


****SUPERSEDED****
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