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J/A+AS/140/89       Galaxy coordinates. II                  (Paturel, 1999)
Galaxy coordinates. II: Accurate equatorial coordinates for 17335 galaxies
       Paturel G., Petit C., Prugniel P., Garnier R.
      <Astron. Astrophys. Suppl. Ser. 140, 89 (1999)>
      =1999A&AS..140...89P
ADC_Keywords: Galaxy catalogs ; Positional data

Keywords: galaxies - catalogs


Abstract:
    Using images of the Digitized Sky Survey we measured coodinates for
    17298 galaxies having poorly defined coordinates. As a control, we
    measured with the same method 1522 galaxies having accurate
    coordinates. The comparison with our own measurements shows that the
    accuracy of the method is about 6 arcsec on each axis (RA and DEC).

Description:
    Table 1: Control sample. For each galaxy the new J2000.0 equatorial
    coordinates are given first. The second coordinates are those
    extracted from the LEDA database (http://www-obs.univ-lyon1.fr). This
    sample of 1522 galaxies was used to check the method of measurement.
    Table 2: This table presents the full sample of new measurements of
    accurate coordinates. It contains 17615 measurements for 17298
    galaxies.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table1.dat        66     1522   Control sample
table2.dat        51    17615   New measurements of accurate coordinates


See also:
    VII/119 : Catalogue of Principal Galaxies (PGC) (Paturel+ 1989)
    http://www-obs.univ-lyon1.fr/leda/home_leda.html : LEDA database


Byte-by-byte Description of file: table1.dat

   Bytes Format Units   Label     Explanations

   1- 13  A13   ---     PGC       PGC (Cat. VII/119) name according to LEDA
  14- 34  A21   ---     Name      Alternate Name
  35- 36  I2    h       RAh       Right ascension (J2000) - New measurement
  37- 38  I2    min     RAm       Right ascension (J2000) - New measurement
  39- 42  F4.1  s       RAs       Right ascension (J2000) - New measurement
      43  A1    ---     DE-       Declination sign - New measurement
  44- 45  I2    deg     DEd       Declination (J2000) - New measurement
  46- 47  I2    arcmin  DEm       Declination (J2000) - New measurement
  48- 49  I2    arcsec  DEs       Declination (J2000) - New measurement
  52- 53  I2    h       RA2h      Right ascension (J2000) - From LEDA
  54- 55  I2    min     RA2m      Right ascension (J2000) - From LEDA
  56- 59  F4.1  s       RA2s      Right ascension (J2000) - From LEDA
      60  A1    ---     DE2-      Declination sign - From LEDA
  61- 62  I2    deg     DE2d      Declination (J2000) - From LEDA
  63- 64  I2    arcmin  DE2m      Declination (J2000) - From LEDA
  65- 66  I2    arcsec  DE2s      Declination (J2000) - From LEDA


Byte-by-byte Description of file: table2.dat

   Bytes Format Units   Label     Explanations

   1- 13  A13   ---     PGC       PGC (Cat. VII/119) name according to LEDA
  14- 34  A21   ---     Name      Alternate Name
  35- 36  I2    h       RAh       Right ascension (J2000) - New measurement
  37- 38  I2    min     RAm       Right ascension (J2000) - New measurement
  39- 42  F4.1  s       RAs       Right ascension (J2000) - New measurement
      43  A1    ---     DE-       Declination sign - New measurement
  44- 45  I2    deg     DEd       Declination (J2000) - New measurement
  46- 47  I2    arcmin  DEm       Declination (J2000) - New measurement
  48- 49  I2    arcsec  DEs       Declination (J2000) - New measurement
      51  A1    ---     LH        [LH] Source of these new measurements:
                                   H=HYPERCAT  L=LEDA


Acknowledgements: Georges Paturel 


References:
     Paturel & Petit, Paper I       1999A&A...352..431P
(End)                                         Patricia Bauer [CDS]   04-Oct-1999