VARIABLE STARS AND STAR CLUSTERS

Abstract

The brief review of some recent results obtained in search and study of different type variable stars both in star clusters and stellar associations and in general field of the Galaxy, i.e. outside star clusters and stellar associations is presented. In the short excursus we overview the historical grounds on which the nova-day astronomy in Uzbekistan based. The dozens of open clusters
of different ages and some unique types of variable stars beyond clusters to compare were observed in the frame of international research project with India. Hundreds of new variable stars in different open star clusters as well as a number of MCV, EB, N, SN and FS beyond the clusters have been discovered and studied using our observational data. Using the Big Data databases of space telescopes, such as Gaia, TESS, Kepler, etc. to search and study variability of stars, the great number of new variable stars were found in selected open star clusters, the basic parameters of them as well as of their host star clusters and associations were determined.Some our suggestions and promising prospects of future collaboration with foreign countries are described and discussed.