I would like to dedicate this paper to the memory of professor Edith A. Miiller, deceased at the age of 77 a year ago, on July 24, 1995, until her retirement working at Geneva Observatory. She had been at the very beginnings of our IAU Commission 46 in the late sixties, she had been its President in 1970 when we all met during the General Assembly in Brighton, she always took great interest in further educational developments. I am personally grateful to her for much helpful advice during Commission 46 meetings at the General Assembly of 1985 in New Delhi. Wonderful teacher and organizer, she was also an extremely kind lady.

While I am not aware of any connection of Edith Mueller with a special planetarium, yet I have chosen this short biographical note to introduce my first problem, not so very obvious when mentioning generally planetarium activities. Nearly every planetarium bears the name of a patron, who either made the existence of that institution possible through financing, or was well known in the town or country for his/her interests in astronomy, etc. Let me mention two examples: Luiz Erro Planetarium in Mexico City, and Jawaharlal Nehru Planetarium in New Delhi. While Erro had been very interested in astronomy – he once studied at Harvard and helped introduce modern astrophysics to his country – Nehru had been a national person: the Planetarium is next to the Nehru Memorial Museum; Prime Minister Indira Gandhi, Nehru's Daughter, attended in person the Planetarium opening.