Systematic differences in the positions and proper motions of the FK5, GC, and N30 stars

Details Systematic differences in the positions and proper motions of the FK5, GC, and N30 stars Systematic differences in the positions and proper motions of the FK5, GC, and N30 stars

Jan 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991velen.......96v&link_type=abstract

Leningradskii Universitet, Vestnik, Matematika, Mekhanika, Astronomiia (ISSN 0024-0850), Jan. 1991, p. 96-109. In Russian.

Astronomy and Astrophysics

Astronomy

Astronomical Catalogs, Astronomical Coordinates, Astronomical Models, Stellar Motions, Classifications, Error Analysis, Sky Surveys (Astronomy)

Scientific paper

The objective of the study was to compile tables of systematic differences FK5-GC and FK5-N30 for reducing the GC and N30 catalogs to the FK5 system. The systematic differences are derived for the epoch B 1950.0. It is shown that the reduction of the GC and N30 to FK5 requires the use of substantial corrections. It is noted that the methodological principles rather than the low quality of the observation material are responsible for the large systematic errors.

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