PUBLICATIONS OF THE ASTRONOMICAL OBSERVATORY OF BELGRADE104, Page 139-146, https://doi.org/10.69646/aob104p139
PROCEEDINGS of the XX Serbian Astronomical Conference, Belgrade, October 16 - 20, 2023, Edited by Jelena Petrović, Dušan Marčeta and Ana Lalović
Published by: Astronomical Observatory, Volgina 7, 11060 Belgrade 38, Serbia

Abstract. A review of the largest astronomical optical telescopes which are presently operational or under construction is presented. Their scientific capabilities are described briefly, particularly with respect to astrophysical spectroscopy and interferometry.