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II/8                Catalogue of UVBGRI measurements  (Nicollier 1975)
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Catalogue of UVBGRI (Stebbins and Withford) measurements:
Published data and Weighted Means
     Nicollier C.
     <Rapport Interne CDS 2, updated (1975)>
================================================================================
ADC_Keywords: Photometry, UVBGRI

Description:
    This compilation contains the published results and the weighted
    means of the observations in the photoelectric photometric system
    described by Stebbins and Withford (1943).

    The six filters were selected to give nearly the same response
    in each of the six spectral regions for a solar-type star.
    The mean wavelengths or the filters are:
       ----------------------------------------------------
           Filter         U     B     V     G     R      I
       Wavelength (nm)   353   422   488   570   719   1030
       ----------------------------------------------------
    The reduction of this system is made in order that
    (B+G+R) = 0.


File Summary:
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 FileName   Lrecl    Records    Explanations
--------------------------------------------------------------------------------
ReadMe         80          .    This file
mean.dat       53       1297    Mean photometric colours
obs.dat        64       1702    Published Measurements
refs.dat       71         44    References of observations
codes.dat      66        178    Description of LID identification system
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See also:
  II/75 : R and I magnitudes compiled by Jasniewicz (1982)

Byte-by-byte Description of file: mean.dat, obs.dat
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   Bytes Format  Units   Label    Explanations
--------------------------------------------------------------------------------
   1- 11  A11    ---     LID      Identification in Lausanne/Geneve system (1)
      12  A1     ---     m_LID    [D12] Multiplicity indicator (1)
  14- 18  F5.2   mag     Umag     ? Colour in Ultra filter (2)
  21- 25  F5.2   mag     Vmag     ? Colour in Violet filter (2)
  28- 32  F5.2   mag     Bmag     Colour in Blue filter (2)
  35- 39  F5.2   mag     Gmag     Colour in Green filter (2)
  42- 46  F5.2   mag     Rmag     Colour in Red filter (2)
  49- 53  F5.2   mag     Imag     Colour in Infra filter (2)
      55  A1     ---     n_Nmes   [/*] Remark on Nmes (3)
  57- 58  I2     ---     Nmes     ? Number of measurements (3)
  60- 64  I5     ---     Ref      [6001/6026]? Reference (see file refs) (3)
--------------------------------------------------------------------------------
Note (1): Keys to the code are described in file "codes.dat";
    'D' in column m_LID indicates a double star with both components
        measured simultaneously;
    '1' and '2' in column m_LID indicates components of a composite
        system.
Note (2): See Description above; the colours are such that (B+G+R) = 0.
Note (3): Values only for "obs.dat" file.
    '/' in column n_Nmes indicates an unknown Nmes value,
    '*' in column n_Nmes indicates that Nmes represents a minimal value.
--------------------------------------------------------------------------------

Byte-by-byte Description of file: refs.dat
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   Bytes Format  Units   Label    Explanations
--------------------------------------------------------------------------------
   1-  5  I5     ---     Ref      [6001/6026]? Reference number
   7-  9  A3     ---     Kron     The parenthesized letter (4) 
  12- 71  A60    ---     Text     Text of reference (5)
--------------------------------------------------------------------------------
Note (4): blank for continuation
Note (5): indicates a reference in Kron et al. (1972)
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Byte-by-byte Description of file: codes.dat
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   Bytes Format  Units   Label    Explanations
--------------------------------------------------------------------------------
   1- 66  A66    ---     text     Description of LID identification system
--------------------------------------------------------------------------------

Historical Notes:
  * July 1975: Magnetic tape with data provided to CDS by M. Mermilliod
    (Lausanne/Geneva Observatory)
  * September 1995: documentation produced at CDS
  * March 1996: Online documentation standardized at ADC

References:
  Jasniewicz B., 1982, A&AS 49, 99 (Catalogue: II/75)
  Kron G.E., Guetter H.H., Riepe B.Y., 1972, Publ. U.S. Naval Obs. 20, part 5.
  Stebbins J., Withford A.E., 1943, ApJ 98, 20  =1943ApJ....98...20S
================================================================================
(End)  Francois Ochsenbein [CDS]   (revised J.A. Watko [SSDOO/ADC]) 14-Mar-1996