AGK3R (Smith 1990)

Details AGK3R (Smith 1990) AGK3R (Smith 1990)

Dec 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995ycat.1161....0s&link_type=abstract

VizieR On-line Data Catalog: I/161. Originally published in: unpublished, 1990

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3

Positional Data

Scientific paper

There is a need for reference catalogs with good modern positions. Recently, positions were redetermined for Northern Hemisphere reference stars to form the AGK3R catalog that was used to determine the plate constants for the AGK3 Photographic Catalog (Dieckvoss 1975). The AGK3R catalog contains 21,499 stars evenly distributed on the surface of the celestial sphere from -5 deg. to +90 deg. The observations were made with 11 northern meridian circles during the period 1956 to 1963. Stars were selected from two lists: one selected at the U. S. Naval Observatory and the other at the Pulkovo Observatory and the Sternberg Institute. The participating observatories were Bergedorf, Bordeaux, Greenwich, Heidelberg, Nicolaev, Ottawa, Paris, Pulkovo, Strasbourg, and the U. S. Naval Observatory (Smith, 1980). Both the seven-inch and the six-inch transit circles were employed at the U. S. Naval Observatory. All observations were reduced on a nightly basis by the observers to the FK3R system and, later to the FK4 either by the observer himself or at the U.S. Naval Observatory.
(1 data file).

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