Karl Müller (astronomer)
Karl Müller (22 August 1866 – 23 October 1942) was born in Franzensbad (Czech: Františkovy Lázně), Bohemia, Austrian Empire and died in Vienna, Austria. He was an Austrian government official and amateur astronomer. He collaborated with Mary Adela Blagg on standardizing the nomenclature of formations on the Moon for the Lunar Commission of the newly formed International Astronomical Union. Together with Blagg he produced a two volume set in 1935, entitled "Named Lunar Formations", that became the standard reference on the subject. The crater Müller on the Moon is named after him.