ADC/CDS Standard Document for Catalog:
/catalogs/2/2193/

1. Use the ADC Data Viewer Suite to visualize the data.
2. Get the data files via anonymous FTP. (See Note.)

II/193  UBV Photoelectric Cat: Data 1986-1992 (Mermilliod 1994)
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UBV Photoelectric Catalogue: Data 1986-1992
   Mermilliod J.C.
  <Bull. Inf. CDS 45, 3 (1994)>
  =1994BICDS..45....3M
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ADC_Keywords: Photometry, UBV; Combined data

Description:
    The previous compilation of UBV data (Mermilliod 1986a,b,c)
    contains the UBV photoelectric observations published between 1953
    and 1986. The present supplement adds the data published between
    1986 and the end of 1992 which represent 25639 new UBV data. The
    corresponding references were numbered in continuation of the main
    catalogue and go from number 1603 to 1784.
    See <http://obswww.unige.ch/gcpd/ph01.html> for a description
    of the UBV photoemtric system.

File Summary:
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 FileName    Lrecl    Records    Explanations
--------------------------------------------------------------------------------
ReadMe          80          .    This file
catalog.dat     48      25639    The UBV data published 1986-1992
codes.txt       80       2709    LID Coding System
refs.txt        80        780    References
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See also:
    http://obswww.unige.ch/gcpd/gcpd.html : a server at the Lausanne/Geneva 
     Observatory for Photometric Data.

Byte-by-byte Description of file: catalog.dat
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   Bytes Format  Units   Label    Explanations
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   2- 11  I10    ---     LID      Code number (see file codes.txt)
      12  A1     ---     rem     *[1234DS] Remark on duplicity or
                                        identification of components
      13  A1     ---     var      [V] Remark on variability
  14- 20  F7.3   mag     V        [-1.5/20.5]? V magnitude
  22- 27  F6.3   mag     B-V      [-1/5]? B-V colour index
  29- 34  F6.3   mag     U-B      [-1.5/5]? U-B colour index
      37  A1     ---     n_V     *[S/*] Flag on the number of measurements
  38- 40  I3     ---     o_V      [0/324]? Number of measurements
  44- 48  I5     ---     r_V      [1603/1784] Reference key (see file refs.txt)
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Note on rem:
  the components are indicated by an extra digit;
        "D" stands for double
        "S" designates supplementary stars (example in Praesepe,
            KW 250 and KW 250s both exist)

Note on n_UBV:
   S = Standard star
   / = Number is unknown
   * = the minimum number of measurements is given


References:
  Mermilliod J.-C. 1986a, =1987A&AS...71..413M (paper I) (Catalog: <II/122B>)
  Mermilliod J.-C. 1986b, =1987A&AS...71..119M (paper II)
  Mermilliod J.-C. 1986c, =1987BICDS..32...37M (paper III)

Author's address:
  J.-C. Mermilliod
        Institut d'Astronomie
        Universite de Lausanne
        51, ch. des Maillettes
        CH-1290 Chavannes-des-Bois
        Switzerland
  e-mail: mermio@scsun.unige.ch
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(End) J.-C. Mermilliod[Lausanne/Geneve Obs.] & Gail Schneider [ADC]  23-Nov-1994