Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985a%26a...149...50s&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 149, no. 1, Aug. 1985, p. 50-56.
Astronomy and Astrophysics
Astrophysics
15
Astrometry, Astronomical Catalogs, Astronomical Coordinates, Error Analysis, Star Distribution, Stellar Motions, Stellar Magnitude
Scientific paper
Comparisons between the catalogue N 30, the AGK 3 RN by Corbin, and modern catalogues of observation have shown that there are significant systematic differences between the systems of the bright and faint stars in N 30, mainly in the proper motions in right ascension. No significant deviations between the FK 4 system and Corbin's catalogue AGK 3 RN have been found. The systematic errors in the AGK 3 proper motions have been estimated from the catalogue comparison AGK 3 RN-AGK 3, adopting the AGK 3 RN catalogue as a representative of the FK 4 system. Maximum deviations up to -0s.060 cy-1 and -0arcsec.80 cy-1 occur in a few regions on the sky, but in general the deviations AGK 3 RN-AGK 3 do not exceed ±0s.020 cy-1 and ±0arcsec.30 cy-1 for the proper motion systems in right ascension and declination.
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