About Star Photometry on Digitized Astronegatives

1Andruk, VM, 1Pakuliak, LK, 1Golovnia, VV, 1Shatokhina, SV, 1Yizhakevych, OM, 2Protsyuk, Yu.I, 3Eglitis, I, 3Eglite, M, 4Kazantseva, LV, 5Relke, H, 6Yuldoshev, QK, 7Muminov, MM
1Main Astronomical Observatory, NAS of Ukraine
2Mykolaiv Astronomical Observatory Research Institute
3Baldones Observatory of the Institute of Astronomy, University of Latvia
4Astronomical Observatory of the Kyiv Shevchenko National University
5Walter-Hohmann-Observatory
6Ulugh Beg Astronomical Institute of the Uzbek Akademy of Sciences
7Andijan State University
Nauka innov. 2017, 13(1):17-27
https://doi.org/10.15407/scin13.01.017
Section: Scientific Framework of Innovation Activities
Language: Ukrainian
Abstract: 
This paper discusses the issues of characteristic curve restoration for astronegatives exposed in the wide range of expositions in U, B Johnson color bands using different telescopes. Photographic plates are digitized by Epson commercial scanners. Digitized images are processed in MIDAS/ROMAFOT software. The accuracy of characteristic curve restoration using photoelectric data is in the range 0.1-0.2m.
Keywords: astronegatives, image processing, U and B stellar magnitudes
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