Researcher (retired), Research Center for Astronomy and Applied Mathematics Academy of Athens (since 2002). He was born in Athens on the 29th of April, 1944. He obtained the B.Sc. in Physics from the Aristotle University of Thessaloniki, Greece (1969), the M.Sc. in Meteorology from the University of Athens, Greece (1976) and the Ph.D. in Solar Physics from the University of Ioannina, Greece (1984). He has worked as a Research Assistant (1974- 1992) and as Senior Researcher (1992-2002) before the present position at the same Center. His main scientific interest is the Solar Physics.
Assistant Professor (retired), Department of Physics, University of Patras, Greece. He was born in Patras, Greece on the 28th of November, 1947. He received his B.Sc. in Physics from the University of Patras (1973), the M.Sc. from the University of Manchester, U.K. (1979) and the Ph.D. from the same University (1981). His scientific interest is the Dynamical Astronomy (especially in the movements of binary stars and satellites) and he has published scientific papers in international refereed journals and in international conferences as well as 3 textbooks and a special calendar.