Astronomical Data Center

ADCADC/CDS Standard Document for Catalog:
/catalogs/3/3133/

The following is the "ReadMe" document that describes this ADC catalog. You can access the files described here in three ways:

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III/133         Michigan Catalogue of HD stars, Vol.4  (Houk+, 1988)
================================================================================
Catalogue of two-dimensional spectral types for the HD stars. Vol.4
     Houk N., Smith-Moore M.
     <Ann Arbor, Dept. of Astronomy, Univ. of Michigan (1988)>
     =1988MSS...C04....0H
================================================================================
ADC_Keywords: MK spectral classification; Spectral types; Plate data

Description:
  This volume of the catalog contains all HD stars in the declination range
  -26 degrees up to and including -12 degrees (equinox 1900) and is part of
  a series of  catalogs in  the  University of Michigan program of systematic
  reclassification in the MK system of the entire "Henry Draper Catalogue"
  (HD).

File Summary:
--------------------------------------------------------------------------------
 FileName    Lrecl    Records    Explanations
--------------------------------------------------------------------------------
ReadMe          80          .    This file
adc.doc         79        961    Documentation by Wayne H. Warren Jr.
vol4.dat       127      33301    The Catalogue (vol.4)
rem4.dat       375       5143    Notes (to vol.4)
plates.dat      32        505    Summary of Plates
changes.txt     80        124    List of errors corrected as reported by
                                 Shiro Nishimura [ADAC/NAOJ]
--------------------------------------------------------------------------------

Byte-by-byte Description of file: vol4.dat
--------------------------------------------------------------------------------
   Bytes Format  Units         Label    Explanations
--------------------------------------------------------------------------------
   1-  6  I6     ---           HD       Henry Draper Catalog (HD) number
       7  A1     ---           Case     [*] if sp. type has lower case in 
                                          printed ver.
       8  A1     ---           n_SpType [+] if spectral type is from HD Catalog
   9- 26  A18    ---           SpType   Spectral type
      27  A1     ---           Ave_Flag [A] if classification used is an 
                                          average.
      28  I1     ---           q_SpType [1/4]? Quality of the classification,
                                          see adc.doc
  29- 33  A5     ---           Remark   Remark (see adc.doc Appendix A
                                          for description)
  35- 40  A6     mag           Ptg      Photographic magnitude from HD catalog
      41  A1     ---           Var_Flag 'V' if star is known or suspected 
                                           variable
  43- 44  I2     h             RAh      Hours RA, epoch 1900.0
  46- 47  I2     min           RAm      Minutes RA, epoch 1900.0
  49- 52  F4.1   s             RAs      Seconds RA, epoch 1900.0
      54  A1     ---           DE-      Sign Dec, epoch 1900.0
  55- 56  I2     deg           DEd      Degrees Dec, epoch 1900.0
  58- 59  I2     arcmin        DEm      Minutes Dec, epoch 1900.0
  61- 62  I2     arcsec        DEs      Seconds Dec, epoch 1900.0
  64- 67  I4     0.01min/yr    precRAm  Centennial precession in RA, minutes
  69- 72  F4.1   0.01s/yr      precRAs  Centennial precession in RA, seconds
      74  A1     0.01arcmin/yr precDE-s Centennial precession in Dec, sign
  75- 76  I2     0.01arcmin/yr precDEm  Centennial precession in Dec, minutes
  78- 79  I2     0.01arcsec/yr precDEs  Centennial precession in Dec, seconds
  81- 85  F5.1   deg           GLON     Galactic longitude
  87- 91  F5.1   deg           GLAT     Galactic latitude
  93-102  A10    ---           DM       Durchmusterung identification
                                          ('BD', 'CD', or 'CP' in bytes 93-94;
                                            -ZZNNNNN in bytes 95-102)
 106-111  I6     ---           SAO      [1/258997]? SAO Catalog number
 112-115  A4     ---           Plate1   Plate code #1 (see file plates.dat)
 116-119  A4     ---           Plate2   Plate code #2 (see file plates.dat)
 120-123  A4     ---           Plate3   Plate code #3 (see file plates.dat)
 124-127  A4     ---           Plate4   Plate code #4 (see file plates.dat)
--------------------------------------------------------------------------------

Byte-by-byte Description of file: rem4.dat
--------------------------------------------------------------------------------
   Bytes Format  Units   Label    Explanations
--------------------------------------------------------------------------------
   1-  6  I6     ---     HD       Henry Draper Catalog (HD) number
   8-375  A368   ---     Remark   Remarks in free form text
--------------------------------------------------------------------------------

Byte-by-byte Description of file: plates.dat
--------------------------------------------------------------------------------
   Bytes Format  Units   Label    Explanations
--------------------------------------------------------------------------------
   1-  4  A4     ---     Code     Plate code
   7- 11  I5     ---     Number   Plate Number
  15- 32  A18    ---     Date     Exposure date
--------------------------------------------------------------------------------

Historical Notes:
  * 22-Nov-1993: list of plates added at CDS
  * 08-Dec-1994: list of plates provided by Shiro Nishimura [ADAC/NAOJ]
================================================================================
(End)                                    Francois Ochsenbein [CDS]   08-Dec-1994

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