Otto Heinrich Julius Knopf
(1856-1945)

observer to the observatory and Professor of Astronomy

Died aged c. 89

Commemorated on 1 plaque

Ernst Abbe ab 1870 Prof. d. Physik u. Mathematik Univ. Jena . 1878 - 1900 auch Direktor der Sternwarte Otto Heinrich Knopf ab 1889 Observator der Sternwarte. 1897-1927 (em.) Prof. d. Astronomie Univ. Jena

Schillergässchen 2, Jena, Germany where they was director of the observatory