Johann Hommel

      Johann Hommel (also Homelius, Hummelius, Homilius, Hummel; 2 February 1518, Memmingen – 4 July 1562, Leipzig) was a German astronomer and mathematician.

      In 1552 or 1553, Richard Cantzlar introduced transversal dot lines in graduations. It was a variant of the zigzag line system introduced by Hommel. Tycho Brahe obtained the zigzag line system from Hommel.

      The crater Hommel on the Moon is named after him.

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      Last modified on 13 April 2013, at 05:42