David Origanus or David Tost (9 July 1558, Glatz, Silesia

Silesia

Silesia is a historical region of Central Europe located mostly in Poland, with smaller parts also in the Czech Republic, and Germany.Silesia is rich in mineral and natural resources, and includes several important industrial areas. Silesia's largest city and historical capital is Wrocław...

 – 11 July 1628/1629, Frankfurt (Oder)

Frankfurt (Oder)

Frankfurt is a town in Brandenburg, Germany, located on the Oder River, on the German-Polish border directly opposite the town of Słubice which was a part of Frankfurt until 1945. At the end of the 1980s it reached a population peak with more than 87,000 inhabitants...

) was a German astronomer and professor for Greek language and Mathematics at the University of Frankfurt (Oder), where he had also studied.

He observed numerous comet

Comet

A comet is an icy small Solar System body that, when close enough to the Sun, displays a visible coma and sometimes also a tail. These phenomena are both due to the effects of solar radiation and the solar wind upon the nucleus of the comet...

s and published about Ephemeris

Ephemeris

An ephemeris is a table of values that gives the positions of astronomical objects in the sky at a given time or times. Different kinds of ephemerides are used for astronomy and astrology...

 in 1599 and 1609. In contrast to Tycho Brahe

Tycho Brahe

Tycho Brahe , born Tyge Ottesen Brahe, was a Danish nobleman known for his accurate and comprehensive astronomical and planetary observations...

, he was convinced that the Earth rotates.

Works

• Novae motuum coelestium ephemerides Brandenburgicae, Frankfurt aO:
  Frankfurt (Oder)
  Frankfurt is a town in Brandenburg, Germany, located on the Oder River, on the German-Polish border directly opposite the town of Słubice which was a part of Frankfurt until 1945. At the end of the 1980s it reached a population peak with more than 87,000 inhabitants...
  
  Eichornius, 1609, „Praefatio"
• Ephemerides Novae Annorum XXXVI, Incipientes Ab Anno ... 1595, Quo Joannis Stadii maxime aberrare incipiunt, & desinentes in annum 1630: Quibus praemissa est Introductio Seu Compendiaria Ephemeridum Enarratio ... Eichornius, 1599