Panko, Olena O.Панько, Олена ОлексіївнаПанько, Елена Алексеевна2019-05-172019-05-172017Introduction to Cosmology, Proceedings of the Polish Astronomical Society, Volume 4. Proceedings of the conference held 11-23 July, 2016 in Warsaw, Poland. Warsaw: Polish Astronomical Society, 2017.https://dspace.onu.edu.ua/handle/123456789/24052This review summarises the properties of galaxy clusters and their components, namely cluster morphology, richness, morphological types of cluster members and their morphology-density relation, velocity dispersion and mass of clusters, intracluster gas and stars, and also Dark Matter in the clusters.enStructureGalaxy ClustersPrincipal ComponentsArticle