Past affiliation(s) within the IAU

• Past Organizing Committee Member of Commission 26 Double & Multiple Stars (1982-1985)
• Past Organizing Committee Member of Commission 26 Double & Multiple Stars (1979-1982)
• Past Member of Division G Stars and Stellar Physics (until 2022)
• Past Member of Division H Interstellar Matter and Local Universe (until 2022)
• Past Member of Division J Galaxies and Cosmology (until 2022)
• Past Member of Commission 26 Double & Multiple Stars (until 2015)
• Past Member of Commission 28 Galaxies (until 2015)
• Past Member of Commission 35 Stellar Constitution (until 2015)
• Past Member of Commission 37 Star Clusters & Associations (until 2015)
• Past Member of Division IV Stars (until 2012)
• Past Member of Division VII Galactic System (until 2012)
• Past Member of Division VIII Galaxies & the Universe (until 2012)
• Past Member of Special Nominating Committee (1970-1973)