Rheticus

[Sidenote: 1505] Copernicus with his pupil George Joachim, called Rheticus, and Francis Vieta, made some progress in trigonometry.

The Age of the Reformation Preserved Smith 1910

One person seems to have been instrumental in persuading him to go ahead, a scholar called Rheticus, or Georg Joachim von Lauchen, a young mathematician who arrived on Copernicus's doorstep in 1539 and spent two years as his pupil.

The Economist: Daily news and views 2011

One person seems to have been instrumental in persuading him to go ahead, a scholar called Rheticus, or Georg Joachim von Lauchen, a young mathematician who arrived on Copernicus's doorstep in 1539 and spent two years as his pupil.

The Economist: Daily news and views 2011

According to George Joachim, surnamed "Rheticus" (because a native of Feldkirch, in ancient Rhaetia) and his friend Achilles

The Catholic Encyclopedia, Volume 4: Clandestinity-Diocesan Chancery 1840-1916 1913

Historians of astronomy know that before the late 17th century there are far more examples of astronomers who were astrologers or directly supported astrology than not let's try Ptolemaeus, Peuerbach, Regiomontanus, Apian, Copernicus, Rheticus, Tycho, Kepler and Galileo for starters.

Astrology for science communicators 2011

Rheticus sent a copy to Achilles Pirmin Gasser of Feldkirch, his hometown in modern-day Austria, and Gasser wrote a foreword that was published with a second edition that was produced in 1541 in Basel.

Nicolaus Copernicus Rabin, Sheila 2005

The manuscript of On the Revolutions was basically complete when Rheticus came to visit him in 1539.

Nicolaus Copernicus Rabin, Sheila 2005

However, Rheticus was forced to leave Nuremberg later that year because he was appointed professor of mathematics at the University of Leipzig.

Nicolaus Copernicus Rabin, Sheila 2005

Both Rheticus and Giese protested, and Rheticus crossed it out in his copy.

Nicolaus Copernicus Rabin, Sheila 2005

Michael Maestlin (1550-1631) of the University of Tübingen was the earliest astronomer after Rheticus to adopt Copernicus's heliocentricism.

Nicolaus Copernicus Rabin, Sheila 2005