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II/124A           UBV and MK types in Open Clusters, 3rd ed.  (Mermilliod 1986)
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Catalogue of UBV Photometry and MK Spectral Types in Open Clusters
(3rd Edition, August 1986)
     Mermilliod J.C.
     <Astron. Astrophys. Suppl. Ser. 24, 159 (1st Ed.)(1986)>
     =1976A&AS...24..159M 
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ADC_Keywords: Clusters, open ; MK spectral classification ; Photometry, UBV 

Description:
   The catalog is a compilation of UBV photoelectric photometry and MK
   spectral types published up to 1986 for 16433 stars in 295 open clusters.
   It updates the 1976 edition and contains nearly twice as many data as the
   earlier version.  The catalog lists identifications, cross-identifications,
   V, B-V, U-B, spectral types, remarks on various peculiarities, and
   references.  
    
File Summary:
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 FileName    Lrecl    Records    Explanations
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ReadMe          80          .    This file
adc.doc        105        606    ADC Documentation (ASCII)
adc.tex         79        541    ADC Documentation (LaTex)
adc.sty         78         68    ADC Style File (needed by adc.tex)
catalog.dat    128      24856    The Catalogue
lid.txt         80        369    Description of LID numbers (Lausanne/Geneve)
refmk.txt       80        528    References for Spectral Classification
refubv.txt      80        981    References for Photometry
refs.dat        80       1240    All references as a single file
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Byte-by-byte Description of file: catalog.dat
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   Bytes Format  Units   Label    Explanations
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   1-  9  I9     ---     LID      Identification in Geneva/Lausanne system (1)
      10  A1     ---     n_LID    Remark about star (2)
  11- 15  A5     ---     OrigID   Original identification as listed in 
                                    reference for the data
  16- 20  A5     ---     pmID     Identification as listed in proper
                                    motion study
  21- 26  I6     ---     HD       [1/350100]? Henry Draper Catalog (HD) number
  28- 37  A10    ---     DM       Durchmusterung catalog ID (3)
  39- 45  F7.3   mag     Vmag     ? V magnitude in the UBV system
  46- 52  F7.3   mag     B-V      ? B-V color in the UBV system
  53- 59  F7.3   mag     U-B      ? U-B color in the UBV system
  61- 64  I4     ---     r_UBV    [1/2001]? Photometry reference number
  66- 76  A11    ---     MKtype   Spectral type
  78- 80  I3     ---     r_MKtype [1/999]? Spectral type reference number
  82-128  A47    ---     Remarks  Remarks and further cross-identifications
                                    (details in "adc.doc" or "adc.tex")
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Note (1): see Mermilliod, Bull. Inf. CDS 14, 32 (1978) for a description
    of the numbering system; detailed references are in file "lid.txt".
Note (2): this peculiarity is a single-character code as follows:
    B = Spectroscopic Binary         P = Peculiar star
    D = Visual binary                V = Variable star
    E = Emission-line star
Note (3): The Durchmusterung number has the form 'nn+ZZNNNNN' where
     nn = 'BD', 'CD', 'CP'
    +ZZ = zone in degrees
  NNNNN = number in the zone
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Byte-by-byte Description of file: refs.dat
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   Bytes Format  Units   Label    Explanations
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   1-  4  I4     ---     RefNum   [1/2002]? Reference number
       5  A1     ---     n_RefNum 'P' for Photometry ref. ("r_UBV" in 
                                    catalog.dat),'S' for Spectrosc. ref. 
                                    ("r_MKtype in catalog.dat)
   7- 80  A74    ---     Ref      Text of bibliographic reference
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Historical Notes:
    See in "adc.doc" or "adc.tex", section 3 (History), from the
    "Selected Astronomical Catalogs" Vol. 1 CD-ROM (1992), directory
    /photom/ubvopen
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(End)                                    Francois Ochsenbein [CDS]   11-Apr-1995