M 15 (Globular Cluster in Pegasus)
RVB 300 300 300 sec., 2 m RCC telescope at NAO Rozhen, VersArray 1300 B CCD camera at -110° C , collaboration with Yanko Nikolov, Alexander Kurtenkov, Mitko Churalski
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M 15 (Globular Cluster in Pegasus) RVB 300 300 300 sec., 2 m RCC telescope at NAO Rozhen, VersArray 1300 B CCD camera at -110° C , collaboration with Yanko Nikolov, Alexander Kurtenkov, Mitko Churalski |