TY CONF TI Estimation of the Hubble constant from the scatter of the fundamental plane distances of groups and clusters of galaxies ($71.1\pm 2.8$ km s$^{-1}$ Mpc$^{-1}$) KW galaxies: clusters KW elliptical and lenticular KW fundamental parameters KW distances and redshifts; cosmology: large-scale structure of universe JO Modern astronomy: from the Early Universe to exoplanets and black holes AU Kopylova, F.. AU Kopylov, A.. PY 2024 PB Special Astrophysical Observatory of the Russian Academy of Sciences