Joseph Helffrich
(1890-1971)
0000000022178804

Ph.D., Heidelberg University, 1913
Thesis: Untersuchungen im Sternhaufen h Persei nach Aufnahmen mit dem Waltz-Reflektor der Heidelberger Sternwarte (Investigations in the star cluster h Persei after images with the Waltz reflector of the Heidelberg Observatory)

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■ Astronomy-related doctorate ■ Other doctorate ■ Master's degree ■ Bachelor's degree ■ No degree ■ Degree unknown ■ Doctorate, unknown whether astronomy-related