Born in 1948, graduated from the Faculty of Sciences, JEP (now Masaryk) University in Brno (Mathematics and Physics) in 1972. Since then he has been working as a staff member at the Solar Department of the Astronomical Institute of the Academy of Sciences of the Czech Republic in Ondrejov. In 1980 he obtained his PhD in astrophysics - solar physics. Several longer missions abroad: ISZF Irkutsk, Russia; Hvar Observatory, Croatia; Crimean Astrophysical Observatory, Ukraine; National Solar Observatory Sacramento Peak, USA; Observatoire de Paris, Meudon, France. Research topics: Solar atmosphere, flares, surges, prominences, coronal loops, spectral observation and analysis, diagnostics of the solar activity phenomena, solar corona, eclipses of the Sun, instrumentation. He is a responsible person for modernization of the Ondrejov solar spectrograph HSFA2. He has been a PI, Co-PI or Co-I on several solar physics projects. A member of solar eclipse expeditions to east Siberia (1981 and 1997), Romania & Hungary (1999), Angola (2001 and 2002) and Turkey (2006). Since 1992 external lecturer on spectroscopy at the Charles University at Prague, an external lecturer on solar physics at the Masaryk University at Brno in 2000, a supervisor of student diploma theses. A member of the International Astronomical Union and a representative of the Czech Republic in JOSO. A member of the Editorial Board of the Hvar Observatory Bulletin since 2004. Author and co-author of about 140 papers.