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Volume 7, No. 2
Tycho Brahe's Geniture
Günther Oestmann
Abstract
The paper deals with the astronomical contents of a horoscope for Tycho Brahe cast by himself. Two versions of the horoscope are extant in a manuscript written by Georg Ludwig Frobenius (1566-1645), who was an eminent astronomer and astrologer. Frobenius had stayed for a short time with Tycho on the island of Hven and belonged to the learned circle around Heinrich Rantzau, Danish governor of Schleswig and Holstein. Tycho's geniture can also be found in a collection of nativities compiled by Conrad Cellarius (1574-1636) in Tübingen.