Raphael Halevi of Hannover. Techunath HaShamayim [calculations of intercalation and the Jewish calendar]. Edited by Moses ben Jekuthiel of Tiktin.

(ASTRONOMY).

J. Janson

Amsterdam

1756

FIRST EDITION. Numerous astronomical diagrams.

Vinograd, Amsterdam 1742.

A guide to the scientific aspects of Maimonides’ Hilchoth Kiddush HaChodesh (Laws of Sanctification of the New Moon). Levi 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 Enligtenment (2004) pp. 41-42.