Paul Kempf

In 1878 was awarded a doctorate in astronomy from the Humboldt University of Berlin with a thesis titled Untersuchungen über die Ptolemäische Theorie der Mondbewegung (Investigations into the Ptolemaic theory of lunar movement).

[3] Kempf joined an 1882 German expedition to Chile to observe the transit of Venus across the Sun.

[5][6] (Full name: "Photometrische Durchmusterung des Nördlichen Himmels, anthaltend alle sterne der B.D.

[8] Kempf became secretary to the Astronomische Gesellschaft in 1914, then added the job of treasurer, holding both posts until his death.

[3] He was survived by his wife, Helene Marie Emilie Kempf, who became one of the first two female members of the Astronomische Gesellschaft in 1921.