Description
10 RR Lyr-type variables in M92 are studied. Data obtained from observations carried out by the author (1961-1965) and those of the past years were used. Periods of brightness variations, diagrams O-C, mean curves, period-amplitude and period-asymmetry relations were determined. Variations of the periods of studied variables were discovered; 3 of them do not possess Blazko effect. A distance of 10.5kpc to M92 was obtained according to the media,n magnitude of the studied stars.
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