Bidspirit auction | (ASTRONOMY). Raphael Halevi of Hannover.

(ASTRONOMY). Raphael Halevi of Hannover. Techunath HaShamayim [calculations of intercalation and the Jewish calendar]. Edited by Moshes ben Jekuthiel of Tiktin. - FIRST EDITION.  Numerous astronomical diagrams. ff. (2), 38. Lightly worn. Modern calf. 4to. Vinograd, Amsterdam 1742. Amsterdam, J. Jansen, 1756 A guide to the scientific aspects of Maimonide' Hilchoth Kiddush HaChodesh (Laws of Sanctification of the New Moon). The author was an interesting amalgam of two worlds: He excelled in his traditional yeshivah education in Frankfurt a/Main, yet was also closely associated with the philosopher Gottfried Wilhelm Leibniz. See S. Feiner, The Jewish Enlightenment (2004) pp. 41-42.