Julius Heinrich Franz

Who was Julius Heinrich Franz?

Julius Heinrich Franz was a German astronomer.

Franz was educated in Berlin, after which he was the principal astronomer at the Royal Observatory in Königsberg. In 1882 he was a member of a team sent to the town of Aiken, South Carolina, to observe the transit of Venus. Toward the end of the century he replaced Johann Galle as the director of the observatory at the University of Breslau.

He is most noted for his measurements of features near the lunar limbs. He published a popular book about the Moon in 1906 called Der Mond. In this work Julius named some lunar mares along the limb the Mare Orientale, Mare Autumni and Mare Veris. The later two were later renamed to the Lacus Autumni and Lacus Veris.