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A study of the photometric system of the Kiev network telescope |
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| Authors: | V M Andruk V M Reshetnik Ya O Romanyuk V V Kleshchonok I V Khatko A I Yatsenko V S Samoylov |
| Institution: | 1. Main Astronomical Observatory, National Academy of Sciences of Ukraine, ul. Akademika Zabolotnogo 27, Kyiv, 03680, GSP Ukraine 2. Taras Shevchenko National University of Kyiv, ul. Vladimirskaya 64, Kyiv, 010601, GSP Ukraine 3. Astronomical Observatory of Taras Shevchenko National University of Kyiv, Kyiv, GSP Ukraine 4. Astropribor, ul. Akademika Zabolotnogo 31, Kyiv, 03680, GSP Ukraine |
| Abstract: | We performed a series of CCD observations in BVRI bands of a celestial region in cluster M67 (NGC 2682) to study the photometric system of the Kyiv network telescope. The signal recording system consists of a CGE-1400 telescope, Celestron #94175 focal reducer, an automatic turret with a set of UBVRI filters, and a Rolera Mgi CCD camera. The operating field of the system is 10.62′ × 10.62′. CCD images are processed in the MIDAS/ROMAFOT package. The reduction coefficients of the instrumental photometric system relative to Johnson’s BVRI system are determined. The resulted value of the module of distance to cluster M67 V ? M V = 9.63 m does not contradict the results of other researchers. The mean square errors for one determination of stellar magnitude for different bands are 0.02–0.12 m . The errors in determining equatorial coordinates in the TYCHO-2 catalog system are ± 1″. |
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