Christen Sørensen Longomontanus was a Danish astronomer.
Christen Sørensen Longomontanus
Inventio quadraturae circuli, 1634
Astronomer
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An astronomer is a scientist in the field of astronomy who focuses on a specific question or field outside the scope of Earth. Astronomers study astronomical objects, such as stars, planets, moons, co
A voting session is conducted in 2006 International Astronomical Union's general assembly for determining a new definition of a planet
Galileo Galilei is often referred to as the father of modern astronomy. Portrait by Justus Sustermans.
Johannes Kepler, one of the fathers of modern astronomy