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I/180 General Catalogue of Stars (GCPA; 1992)
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General Catalogue of Stars with the Systems of Photoelectric Astrolabes (GCPA)
Working Group of GCPA
<CDS Bull. No. 41, p. 7 (1992)>
=1992BICDS..41....7W
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ADC_Keywords: Fundamental catalog; Positional data; Stars, fundamental
Description:
The general Catalogue reported here has been Compiled on the basis of the
preliminary catalogues consisting of the long series observations of the
fundamental programs (mainly of FK4 stars) of the Mark I photoelectric astro-
labe of Shaanxi Astronomical Observatory and Mark II photoelectric astrolobes
of Beijing, Shanghai and Yunnan Astronomical Observatories, together with a
large amount of observations of catalogue stars carried out in Beijing,
Shanghai and Shaanxi, as well as 4 preliminary catalogues of Danjon's
astrolabes derived from the observations of OPL No.14 of Shanghai, No.30 of
Beijing and No.29 of Wuchang.
With magnitudes ranging from 0.1 to 7.2, the GCPA consists of 1579 stars.
The declinations are from -3.6 degree to 68.8 degree, in which 642 are FK4
stars. The mean precisions of position corrections are 3.3 ms and 0.058" in
right ascension and declination, respectively. The mean epoch of GCPA is
1987.8.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
gcpa.dat 129 1579 Catalog Data
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Byte-by-byte Description of file: gcpa.dat
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Bytes Format Units Label Explanations
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7- 10 I4 --- ID Serial Number of GCPA
13- 17 I5 --- GC Number in GC (Boss' General Catalog)
20- 23 I4 --- FK4 Number in FK4
25- 29 F5.2 mag mag Visual magnitude
32- 34 A3 --- Sp Spectral type
36- 42 F7.2 a EpRA Mean Epoch of individual observed RA (-1900)
45- 46 I2 h RAh += Right Ascension For B1975.0 hours
48- 49 I2 min RAm Right Ascenion for B1975.0 minutes
51- 56 F6.3 s RAs Right Ascenion for B1975.0 seconds
58- 64 F7.1 ms corRA Position correction RA at mean epoch of obs.
66- 71 F6.1 ms e_corRA Mean error of correction on RA
73- 77 F5.1 --- AcorRA Mean accordance of correction on RA
78- 81 I4 --- catRA Number of catalogues on Right Ascension
85- 91 F7.2 a EpDE Mean Epoch of individual observed DE (-1900)
93 A1 --- DE- ? Declination for B1975.0 sign
94- 95 I2 deg DEd Declination for B1975.0 degrees
96- 98 I3 arcmin DEm Declination for B1975.0 arcminutes
99-104 F6.2 arcsec DEs Declination for B1975.0 arcseconds
106-112 F7.1 carcsec corDE Position correction DE at mean epoch of obs.
114-119 F6.1 carcsec e_corDE Mean error of the correction on DE
121-125 F5.1 --- AcorDE Mean accordance of correction on DE
126-129 I4 --- catDE Number of catalogues on Declination
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Acknowledgement:
The content of this ReadMe is from an unsigned Intro file dated 25-Feb-1992.
It was modified to the current CDS standard at ADC (MAY-1996).
References:
Working Group of GCPA, Publications of the Beijing Astronomical
Observatory, No. 2, 1983.
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(End) Julie Anne Watko [SSDOO/ADC] 20-MAY-1996