Joseph Helffrich
German astronomer
Joseph Helffrich was a German astronomer.
He did his Ph.D. dissertation in 1913 at the Landessternwarte Heidelberg-Königstuhl at the University of Heidelberg. Wikipedia
Born: January 12, 1890, Mannheim, Germany
Died: December 26, 1971 (age 81 years), Neckarau, Mannheim, Germany