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
2Research Institute «Mykolaiv Astronomical Observatory»
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
Sci. innov. 2017, 13(1):15-23
https://doi.org/10.15407/scine13.01.015
Section: Scientific Framework of Innovation Activities
Language: English
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