Johannes Stadius

John Stadius or Estadius (Dutch Jan Van Ostaeyen; French Stade Jean ) (* approximately May 1, 1527; † June 17, 1579 ) was an astronomer, astrologer and mathematician from Flanders.

Life

Jan Van Ostaeyen came from Loenhout, which is why he is also called Leonnouthesius. He studied mathematics, geography and history at the University of Leuven in Gemma R. Frisius. Activities he was from 1554 in Turin at the Duke of Duke of Savoy, then in Paris, Cologne and Brussels. In his Tabulae Bergenses ( 1560) he also refers to himself as court mathematician of Philip of Spain.

In Brussels, he published Ephemerides novae at auctae, edited by Arnold Birckmann, Cologne, 1554th The ephemeris (Greek ephemeros, daily) list the positions of the stars on.

The work, which was read by Tycho Brahe and Nostradamus, linked mathematics and medicine. Stadius was encouraged by his teacher Gemma Frisius - he should not hesitate as Nicolaus Copernicus, and are not afraid to abandon the outdated Alfonsinische panels in favor of its own findings.

He died in Paris, according to grave inscription at June 17, 1579 at the age of 52 years and almost 2 months, so the birth is estimated at the May 1, 1527.

The lunar crater Stadius was named after him.