Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981rmxaa...6..115s&link_type=abstract
(International Astronomical Union, Reunion Regional Latinoamericana de Astronomia, 2nd, Merida, Venezuela, Jan. 19-23, 1981) Rev
Astronomy and Astrophysics
Astronomy
29
Astrometry, Astronomical Coordinates, Astronomical Photography, Coordinate Transformations, Reference Stars, Star Distribution, Astronomical Catalogs, Cartesian Coordinates, Error Analysis, Prisms, Projective Geometry, Spherical Coordinates
Scientific paper
The SAO Catalog, the Yale Catalog, the Perth 70 Meridian Circle Catalog, and the FK4 Catalog, are used as reference systems in the present assessment of a novel block adjustment method that is based on a conversion to three-dimensional Cartesian coordinates and subsequent rotation around three axes, for the case of 22 plate pairs taken with an objective prism. The number of links between plates is found to vary from 43 to 344, and the system is shown to work well even in the case where the number of reference objects is considerably less than the number of fields. The Perth 70 Catalog is recommended for use in southern fields.
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