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I/265              Second Cape Photographic Catalogue (CPC2)  (Zacharias+, 1999)
The second Cape photographic catalogue on the Hipparcos system.
     Zacharias N., Zacharias M.I., De Vegt C.
    <Astron. J. 117, 2895 (1999)>
    =1999AJ....117.2895Z
ADC_Keywords: Photographic catalog ; Surveys ; Positional data

Keywords: astrometry - catalogs


Abstract:
    The Second Cape Photographic Catalogue (CPC2) is an astrometric,
    photographic catalog covering the entire Southern Hemisphere to a
    limiting magnitude of about 10.5. The Hipparcos Catalogue has been
    used for a new, plate-by-plate, rigorous reduction. A significant
    improvement over the release 1 version of the data was achieved. With
    an average accuracy of 53 mas and a mean epoch of 1968, the CPC2 is a
    key catalog for proper-motion determination. This release 2 of the
    CPC2 contains high-quality positions of 266629 stars and an appendix
    of 8040 other stars. Catalog reduction and construction details are
    given, as well as a description of the final product, which is
    available from the US Naval Observatory.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
cpc2main.dat      55   266629   CPC2 main catalogue
cpc2app.dat       55     8040   CPC2 appendix


See also:
 I/239 : The Hipparcos and Tycho Catalogues (ESA 1997)
   I/4 : Cape photographic catalogue (Stoy+, 1968)
  I/85 : CPC2. Provisional catalogue (-40°≤DE≤-52° (Nicholson+ 1984)


Byte-by-byte Description of file: cpc2*.dat

   Bytes Format Units   Label     Explanations

   1-  6  I6    ---     CPC2      CPC2 star identification number
                                      (CPC2 FFNNNN in Simbad)
   8- 10  I3    0.1mag  Ptv       Photographic photovisual magnitude (530-640nm)
  12- 21  I10   mas     RAmas     Right ascension at epoch EpRA-1900 (ICRS)
  24- 32  I9    mas     SPDmas    Declination +90° at epoch EpDE-1900 (ICRS)
  34- 36  I3    mas     e_RAmas   Formal standard error in RAcos(decl.)
  38- 40  I3    mas     e_SPDmas  Formal standard error in declination
  42- 43  I2    ---     Nu        Number of images used (plates)
  45- 49  I5    10-3yr EpRA-1900  Mean epoch of RA (-1900)
  51- 55  I5    10-3yr EpDE-1900  Mean epoch of declination (-1900)


History: From ApJS electronic version

(End)                           James Marcout, Patricia Bauer [CDS]  14-Sep-1999