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III/18B     Stellar Spectra Classified in Morgan-Keenan System (Jaschek+ 1964)
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Catalogue of Stellar Spectra Classified in the Morgan-Keenan System
    Jaschek C., Conde H., de Sierra, A.C.
    <Publ. La Plata Obs., Ser. Astron. 28, No. 2 (1964)>
    =1964PLPla..28....1J
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ADC_Keywords: MK spectral classification ; Spectral types

Description:
   The purpose of this catalog is to provide bibliographic references to
   spectral classifications of stars in the Morgan-Keenan system published in
   the literature prior to January 1963.  The catalog includes, with few
   exceptions, only objects contained in the Durchmusterungen:  BD, SD, CD,
   and CPD.  Objects belonging to stellar clusters and extragalactic nebulae
   were excluded from the catalog if they are not listed in the
   Durchmusterungen.  The catalog includes sequential numbers, HD and DM
   numbers, right ascension and declination (B1900.0), magnitudes, spectral
   classifications, and bibliographic references.  This machine-readable
   version was modified and corrected with errata at the Astronomical Data
   Center/Goddard Space Flight Center, NASA/Goddard Space Flight Center.

File Summary:
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 FileName       Lrecl  Records   Explanations
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ReadMe             80        .   This file
mkclass.txt        80       72  *The original ADC document
changes.txt        80      218   Changes made by ADC 
mkclass.dat       125    20849   Catalog Data
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Note on mkclass.txt:
    The file summary, format description, and changes have been removed as
    they are included in either the ReadMe or changes.txt 

Byte-by-byte Description of file: mkclass.dat 
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   Bytes Format  Units   Label     Explanations
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   1-  2  I2     ---     count    *Counter within a group of records  
   4-  9  I6     ---     HD        ?HD number
  10- 14  A5     ---     n_HD      Additional designation or alternate number
  15- 16  A2     ---     DM_cat    DM catalog designation
      17  A1     ---     DM_sign   Sign of DM zone
  18- 19  I2     deg     DM_zone   ?Declination zone
  20- 24  I5     ---     DM_num    ?Number within zone
  25- 27  A3     ---     n_DM      Additional designation
  28- 38  A11    ---     name      Alternative name
  39- 40  I2     h       RAh       Right ascension hours (1900.0)
  42- 45  F4.1   min     RAm       Right ascension minutes (1900.0)
      47  A1     ---     DE-       Sign of declination
  48- 49  I2     deg     DEd       Declination degrees (1900.0)
  51- 52  I2     arcmin  DEm       Declination minutes (1900.0)
  54- 57  F4.1   mag     mag      *?Magnitude (accuracy is uncertain)
  59- 77  A19    ---     Sp       *Spectral type 
  79-102  A24    ---     note     *References and notes
     103  A1     ---     com       [* ] Asterisk indicates corrected value
 104-111  F8.4   rad     RAr       Right ascension in radians
 112-119  F8.4   rad     DEr       Declination in radians 
 120-125  I6     ---     cnt      *Counter from hard copy catalog  
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Note on count:
   For any given star there may be as many as 11 records.  The first 
   record of such a group gives a spectral classification and 
   references, while subsequent records may be used merely to continue 
   the list of references which gave that classification, or
   subsequent records are used to give different classifications 
   (and associated references) for the given star.
Note on mag: 
    For identification purposes only 
    Two stars have non-digits in the magnitude field.
    GM Per (line 3704) has the magnitude 9.0)
    HD 38268 (line 5015) has NEB in the magnitude column 
Note on Sp: 
    Peculiar objects are generally included; subdwarfs listed occasionally;
    N, R, and S stars usually mentioned; white dwarfs omitted.
Note on note: 
    Each reference is given as a three digit integer followed by a blank. 
       The notes are coded as follows:
         V   variable
         SB  spectroscopic binary
         VB  visual binary
         TS  triple system
Note on cnt:
    A counter which sequentially numbers the entries in the     
       hardcopy.  The records in the machine readable version have
       been reordered by right ascension (1900).
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(End)         N. G. Roman      [ADC/SSDOO]                  7-Aug-1997