Astronomy and Astrophysics – Astrophysics
Scientific paper
Mar 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984cha%26a...8...54.&link_type=abstract
Chinese Astronomy and Astrophysics, Volume 8, Issue 1, p. 54-62.
Astronomy and Astrophysics
Astrophysics
Scientific paper
The General Catalogue of Photoelectric Astrolabe Stars (GCPA) based on the Chinese photoelectric astrolabe system is described. It is a combined system of right ascension and declination synthesized from four primitive star catalogues' obtained with the photoelectric astrolabe. Four other primitive catalogues obtained with the Danjon astrolabe are reduced to the combined system and added to it. GCPA contains 1579 stars, 1541 Δα values and 1131 Δδ values. The overall average accuracy is +/-3.3 ms in Δα, and +/-0''.058 in Δδ for the FK4 stars, the corresponding values are +/-2.3 ms and +/-0''.042. FK4 stars observed by two or more instruments gave 485 Δα values and 349 Δδ values, with external accuracies +/-3.8 ms and +/-0''.041. Corrections to the FK4 system as determined by GCPA are given and a comparison with the relevant catalogues is presented.
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