Past affiliation(s) within the IAU

• Past Organizing Committee Member of Commission 24 Photographic Astrometry (1979-1982)
• Past Organizing Committee Member of Commission 24 Photographic Astrometry (1976-1979)
• Past Member of Commission 24 Photographic Astrometry
• Past Member of Division A Fundamental Astronomy (until 2022)
• Past Member of Division F Planetary Systems and Astrobiology (until 2022)
• Past Member of Division G Stars and Stellar Physics (until 2022)
• Past Member of Commission 8 Astrometry (until 2015)
• Past Member of Commission 26 Double & Multiple Stars (until 2015)
• Past Member of Commission 42 Close Binary Stars (until 2015)
• Past Member of Commission 51 Bio-Astronomy (until 2015)
• Past Member of Division I Fundamental Astronomy (until 2012)
• Past Member of Division III Planetary Systems Sciences (until 2012)
• Past Member of Division IV Stars (until 2012)
• Past Member of Division V Variable Stars (until 2012)
• Past Member of Finance Committee (1976-1979)