III/156     Cool Galactic Carbon Stars, 2nd Edition (Stephenson 1989)
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A General Catalog of Cool Galactic Carbon Stars, 2nd edition
    Stephenson C.B.
   <Publ. Warner & Swasey Obs., 3, No. 2 (1989)>
   =1989PW&SO...3...53S
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ADC_Keywords: Stars, carbon

Description:
  The catalog is intended to list all 5987 cool carbon stars having known
  positions of at least roughly the precision of The Henry Draper
  Catalogue. Cool carbon stars are defined as stars whose spectra at low
  dispersion (say a resolution no better than 1-2 angstroms) are known
  to show bands of the Swan system of the C2 molecule; or, if the
  spectral region of the Swan system is inadequately observed, they show
  the red or infrared bands of CN in strength adequate to infer that the
  Swan bands almost certainly would be seen if their presence could be
  tested.  The closing date for literature search was 1989 June 30,
  defined by literature received in the author's library by that date.
  The catalog includes equatorial coordinates (B1900.0); photographic,
  visual, and infrared magnitudes; spectral types, galactic coordinates,
  and cross identifications to various other designation systems.

File Summary:
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  FileName      Lrecl  Records   Explanations
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ReadMe             80        .   This file
carbon.dat        135     5987   Data for 5987 carbon stars
notes.dat          80     1426   Notes to the catalog
table2.dat        115      167   Stars that have been published as Carbon,
                                  but probably or definitively are not.
tbl2note.dat       96       46   Notes for Table 2
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Byte-by-byte Description of file: carbon.dat
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  Bytes  Format  Units   Label    Explanations
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  1-4    I4      ---     CGCS     [1/5987]+ Catalog running number
  7-8    I2      h       RAh      Right Ascension B1900 (hours), see PosFlag
 10-11   I2      min     RAm      Right Ascension B1900 (minutes)
 13-16   F4.1    s       RAs      Right Ascension B1900 (seconds)
 19      A1      ---     DE-      Declination sign
 20-21   I2      deg     DEd      Declination B1900 (degrees), see PosFlag
 23-24   I2      arcmin  DEm      Declination B1900 (minutes)
 26-27   I2      arcsec  DEs      Declination B1900 (seconds)
 30-33   F4.1    mag     Pmag     ? Photog. magnitude, numerical
 34      A1      ---     u_Pmag   [: ] Colon for uncertainty in Pmag
 35-38   F4.1    mag     Vmag     ? Visual magnitude, numerical
 39      A1      ---     u_Vmag   [: ] Colon for uncertainty in Vmag
 40-43   F4.1    mag     IRmag    ? Infrared magnitude, numerical
 44      A1      ---     u_IRmag  [: ] Colon for uncertainty in IRmag
 46-50   F5.1    deg     GLON     galactic longitude, l(II)
 52-56   F5.1    deg     GLAT     galactic latitude, b(II)
 58      A1      ---     l_bmag   [<>] Limit on bmag
 59-62   F4.1    mag     bmag     ?b magnitude
 63      A1      ---     l_vmag   [<>] Limit on magnitude vmag
 64-67   F4.1    mag     vmag     ?v magnitude
 68      A1      ---     n_vmag   [RVrv:] uncertain; v/V=variable; r/R=remark
 70-73   F4.1    mag     imag     ?i magnitude
 74      A1      ---     n_imag   [rv:] Magnitude flag on i
 75-91   A17     ---     SpType   Spectral types string
 92-125  A34     ---     Names    Designations string
126-132  A7      ---     Rem      Remarks string (see also file notes.dat)
134-135  I2      ---     PosFlag  *Position (coordinates) Precision flag
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Note on PosFlag:
  The following table lists the value of Position Precision flag and gives
  the corresponding format used in the printed (published) catalog.
   PosFlag  Printed Format
   0,1      HH MM SS.S +dd mm ss
    2       HH MM SS   +dd mm.m
    3       HH MM.M
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Byte-by-byte Description of file: notes.dat
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  Bytes  Format  Units   Label    Explanations
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  1-4    I4      ---     CGCS     [1/5987]+= Catalog running number
   5     A1      ---     cont     [+] The '+' indicates incomplete record
  8-80   A73     ---     rem      comments
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Byte-by-byte Description of file: table2.dat
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  Bytes  Format  Units   Label    Explanations
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  1-2    I2      h       RAh      RA hours (B1900)
  4-5    I2      min     RAm      RA in minutes (B1900)
  7-10   F4.1    s       RAs      RA in seconds (B1900)
 13      A1      ---     DE-      Sign of Declination (B1900)
 14-15   I2      deg     DEd      Dec degrees (B1900)
 17-18   I2      arcmin  DEm      Dec in arcminutes (B1900)
 20-21   I2      arcsec  DEs     ?Dec in arcseconds (B1900)
  22     A1      ---     cont     [+] The '+' indicates incomplete record
 24-59   A36     ---     SpSource Spectral Sources or Designations
 60-115  A56     ---     rem      Remarks (see also file tbl2note.dat)
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Byte-by-byte Description of file: tbl2note.dat
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  Bytes  Format  Units   Label    Explanations
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  1-2    I2      h       RAh      *RA hours (B1900)
  4-5    I2      min     RAm      *RA in minutes (B1900)
  7-10   F4.1    s       RAs      *RA in seconds (B1900)
  11     A1      ---     cont     [+] The '+' indicates incomplete record
 19-96   A78     ---     rem      Remarks
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Note on RAh, RAm, RAs:
  The notes to Table 2 (table2.dat) are referenced by right ascension.
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Remarks and Modifications:
  * Star #364 was found to have an incorrect declination in both the
    published and machine-readable catalogs. The latter has been corrected
    in both declination and galactic coordinates...WHW/ADC 3/1991.
  * Star #4942 was erroneously typed 4972 (FO/CDS, 1997/01)

Acknowledgements:
  The ADC Intro file provided by C. B. Stephenson (1989) together with
  the description file by Wayne H. Warren (1991) were used to create this
  ReadMe file.
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(End)                        C.-H. Joseph Lyu [Hughes STX/NASA]      19-Jun-1996
