CATALOGUE OF COORDINATES AND B-MAGNITUDES IN - 20є – +2є ZONE BASED ON THE ULUGH BEG ASTRONOMICAL INSTITUTE PART OF THE FON PROJECT

Q. H. Yuldoshev, M. M. Muminov, Sh. A. Ehgamberdiev, H. Relke, Yu. I. Protsyuk, O. E. Kovylianska, S. V. Protsyuk, V. M. Andruk

Анотація


Catalogue of 13.4 million stars down to 17.5m was obtained in 2017 by using plates from the Kitab Observatory of Ulugh Beg Astronomical Institute (UBAI) of the Uzbek Academy of Sciences. Kitab's part of Photographic Sky Survey (Russian abbreviation is FON, in next contexts)  project  include  more  than  2600  photographic plates, exposed on the Double Astrograph of Zeiss (DAZ, D/F = 40/300, 69"/mm) from 1981 to 1996. Digitizationof  these  plates  was  made  by  using  Epson  Expression 10000XL scanner with the 1200 dpi resolution. Catalogue includes objects from the 1963 plates in declination zone between  -20°  and  +2°  for  middle  epoch  1984.97.  The equatorial  coordinates  of  objects  were  determined  in  the Tycho-2  reference  system  and  the  B-magnitudes  in  the system  of  the  photoelectric  standards.  Five  participants from Uzbekistan, Germany and Ukraine have taken part in the processing of the digitized images. The average internal  accuracy  of  the  catalogue  for  one  observation  are 0.23"  and  0.15m  for  the  equatorial  coordinates  and  B-magnitudes  respectively.  For  the  stars  brighter  than  14m the  errors  are  0.09"  and  0.05m  respectively.  The  analysis of  the  catalogue  and  its  comparison  with  the  several  astrometric catalogues was done.


Ключові слова


photometric methods; data analysis; catalogs; virtual observatory tools; astrometry techniques

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Посилання


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DOI: https://doi.org/10.18524/1810-4215.2017.30.114443

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