To promote and safeguard the science of astronomy in all its aspects, including research, communication, education and development, through international cooperation.
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1972 - 2018 Poland
http://www.nekrologi.net/kondolencje/zbigniew-kolaczkowski/54213906 http://nekrologi.wyborcza.pl/0,11,,430336,Zbigniew-Ko%C5%82aczkowski-kondolencje.html https://araucaria.camk.edu.pl/index.php/2018/09/22/obituary-notice/