Johann Hommel

John Hommel (also: Homelius, Hummelius, Homilius Hummel; * February 2, 1518 in Memmingen, † to July 4, 1562 in Leipzig ) was a German Protestant theologian, mathematician and astronomer.

Life

Hommel began his studies at the University of Strasbourg and continued this in 1540 at the University of Wittenberg continued. In contact with Martin Luther, Philipp Melanchthon and Erasmus Reinhold he earned the degree of Master of Arts and in 1543 became pastor in Bläß at Memmingen. This office he had to leave in 1548 because it forced the Augsburg Interim so. His knowledge of mathematics led him to Augsburg to the Emperor Charles V., where he made a clock that gave the emperor the Turkish ruler Suleiman. He was so popular with the Emperor through his work that those raised him to the peerage in 1553.

However, since he wanted to remain as a follower of the evangelical doctrine no longer at the court of the emperor, he went to the Electorate of Saxony, where he was appointed in 1551 at the University of Leipzig as professor of mathematics and soon after became the Council of the Elector August. In Leipzig he married 1558 Magdalena ( born December 23, 1529 Nuremberg), the daughter of Joachim Camerarius the Elder. In the summer semester 1560 he accepted the rectorship.

Through his lectures on astronomy, he suggested Tycho Brahe to provide small parts of a Line by transversals and borrowed from his observations the latitude of Leipzig at 51 ° 9 ' 17 ". Leipzig brings Brahe befriended Bartholomew Scultetus, another famous student Hommel, of.

Hommel was no writings out, but left several manuscripts, made ​​astronomical instruments and bequeathed the prince College in Leipzig his library, together with a foundation for a student. The DVDD called " De veritate syllogismorum ", Leipzig 1557 his work.

According to Hommel the lunar crater Hommel is named.

A direct collaboration with Valentin Thau is occupied.