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I/108 Cape Photographic Durchmusterung (Gill+ 1895-1900)
The following files can be converted to FITS (extension .fit .fit.Z .fgz)
cpd.dat cpchg.dat
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Query from: http://vizier.cds.unistra.fr/viz-bin/VizieR?-source=I/108
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-rw-r--r-- 1 cats archive 2005 Nov 12 2012 +footg5.gif
-rw-r--r-- 1 cats archive 23327 Nov 12 2012 +footg8.gif
-r--r--r-- 1 cats archive 6559 Sep 20 1995 adc.doc.gz [Uncompressed]
-r--r--r-- 1 cats archive 649 Sep 20 1995 cpchg.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html]
-r--r--r-- 1 cats archive 3929997 Feb 23 1996 cpd.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html]
-rw-r--r-- 1 cats archive 699 Nov 24 2011 errata.htx Beginning of ReadMe :I/108 Cape Photographic Durchmusterung (Gill+ 1895-1900)
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Cape Photographic Durchmusterung (CPD)
Gill D., Kapteyn J. C.
<Cape Photographic Durchmusterung, Ann. Cape Obs. 3 (1895, Part I:
zones -18 to -37 degrees); 4 (1897, Part II: zones -38 to -52
degrees); 5 (1900, Part III: zones -53 to -89 degrees)>
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ADC_Keywords: Surveys ; Durchmusterungen
Description:
The "Cape Photographic Durchmusterung" (CPD, Gill and Kapteyn
1895-1900) is a photographic survey of southern stars in the
declination range -18 deg to -90 degrees. The original goal of the
work was to carry out a southern survey similar to those of the
"Bonner Durchmusterung" (BD, Argelander 1859-1862, see also
Kuestner 1903) and Schoenfeld (1886) and the "Cordoba
Durchmusterung" (CD, Thome 1892-1932) but using photographic plates
which would provide a permanent record of the sky at the epoch of
observation. The summary of the positional uncertainties quoted in
the third volume of the published catalog gives +/- 0.28 sec
(R.A.), +/- 0.044 arcmin (Dec.) for zones -18 to -57 degrees, +/-
0.157 sec + 0.0764/cos(delta) sec (R.A.), +/- 0.056 arcmin (Dec.)
for zones -58 to -85 degrees, and +/- 0.157 sec + 0.0353/cos(delta)
sec (R.A.), +/- 0.0127 arcmin (Dec.) for the polar plate where, as
explained in the intro- duction to the third volume, many positions
were derived from rectangular coordinates (these are positions
reported to 0.1 sec (R.A.) and 0.001 arcmin (Dec.) in the -86 to
-89 degree zones in the catalog). The probable error of a
photographic magnitude, as determined by combining results for
different magnitudes and weighting proportionately according to the
numbers of stars in each class of magnitude, is given as +/- 0.055
mag. From an analysis of the faint magnitude limits on the plates
discussed in the third volume introduction, the catalog as a
whole can be considered complete to photographic magnitude 9.2, but
it is stated that it will be found practically complete, in or near
the Milky Way, to magnitude 9.5.
Introduction:
The complete catalog is contained in the data file, and corrections
published in all errata have been made to the data. The machine
version contains 454877 records, but only 454875 stars (two stars
were later deleted, but their logical records are retained in the
file so that the zone counts are not different from the published
catalog).
A list of corrections made to the original data as a result of
errata published in the three volumes is presented in cpchg.dat.
No other corrections or changes have been incorporated into the
original data, e.g., from more modern positions and magnitudes
or comparison with other catalogs. The original ADC document
contains the total number of stars in each declination zone and
the number added and deleted in each zone.
Data are present for all stars in the catalog, including some which
have been deleted in the errata; these have been flagged by a "D"
in byte 11 of each respective record, but the records and data have
been left in the machine version in order not to change the star
counts and numerical sequencing and so that the stars appear in the
correct locations if the catalog is sorted by right ascension.