Bulletin of Taras Shevchenko National University of Kyiv. Astronomy, no. 54, p. 28-31 (2016)

Astrometry and photometry of digitized plates of the FON-KITAB project

Q. Yuldoshev, Msc.,
O. Usmanov, Msc,
Sh. Ehgamberdiev, Dr.Sc.
Ulugh Beg Astronomical Institute of the Uzbek Academy of Sciences,
M. Muminov, Ph.D.
Andijan State University, Andijan, Uzbekistan,
H. Relke, Ph.D.
Walter Hohmann Observatory, Essen, Germany,
Yu. Protsyuk, Ph.D.
Research Institute “Nikolaev Astronomical Observatory”, Ukraine,
V. Andruk, Msc.
Main Astronomical Observatory NASU, Ukraine

Abstract
Photographic observations for the FON project were carried out in the Kitab Observatory (KO UzAS) from 1981 to 1996 on the DAZ telescope(F/D = 300/40). During this period 2600 photographic plates was exposed. In the 2015 all astronegatives were transferred to the Astronomical Institute in Tashkent (Uzbekistan) and digitization of these plates was started. The 1250 plates have already been processed and the equatorial coordinates α, δ and B-magnitudes of found objects were received. The coordinates of stars were obtained in the Tycho2 system and the B-magnitudes in the system of the photoelectric standards. The processing of the digitized images is carried out in four astronomical institutes:UBAI UzAS, Tashkent (Uzbekistan), WHO, Essen (Germany), RI NAO, Mykolaiv (Ukraine), MAO NASU, Kyiv (Ukraine). For the data reduction is used the software created in the MAO NASU. Based on the results of the processing of the astronegatives in the area with α from 21 hours to 3 hours and δ from –2 º to –6 º were estimated the internal errors of the received catalogue. The mean errors calculated for all stars are 0.2 arcsec and 0.18 mag.For the stars brighter than B<14 magnitude the errors are 0.1 arcsec and 0.1 mag for the equatorial coordinates and B-magnitudes respectively.

Keywords
FON-KITAB project

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