Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997balta...6..336g&link_type=abstract
Baltic Astronomy, vol. 6, p. 336
Astronomy and Astrophysics
Astronomy
Astronomical Catalogs, Astrography, Astronomical Photography, Reference Stars, Declination, Astrometry, Photographic Plates, Ibm Personal Computers
Scientific paper
Work on the creation of the FOCAT-Dushanbe Photographic Catalog in the declination zone from -16 to -30 deg was started in 1983. Photographic observations were taken with the Zeiss astrograph whose aperture was reduced by applying a D = 20 cm diaphragm to improve the quality of stellar images. The field was reduced to 4x4 deg for reference stars and to 3x3 deg for program stars. Exposure time varied from 4 to 8 min to obtain images of stars down to 11.5 mag. The observations were made from 1983 to 1988. A total of 1,200 plates were taken in 2,400 sky areas, resulting in a four-fold overlap of the sky region mentioned above. The plate measurements were reduced in Bashkortostan on an IBM PC computer using the SRS Catalog as a reference catalog. The preliminary version of the FOCAT-Dushanbe Catalog consists of measurements of 55,000 stars with a mean error of 0.28 arcsec. (Abstract only).
Galieva Z. A.
Matveev N. N.
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