Simon Marius und die Kopernikanische Wende

In the organizer's words:

The transition from the geocentric to the heliocentric view of the world took place over several stages. Nicolaus Copernicus had shown that, from a mathematical point of view, there was nothing to be said against a central sun and that some phenomena, such as the mysterious "loops" of the planets, could thus be explained more easily. Tycho Brahe increased the accuracy considerably, but it was the invention of the telescope that brought movement into the debate and allowed the moons of Jupiter and the phases of Venus to be recognized.
Venus. Galileo Galilei and the margrave's court astronomer in Ansbach, Franconia, Simon Marius, were researching both at the same time. This inevitably led to disputes, but also to factual discussions on the interpretation of the telescope discoveries. Marius was a precise observer and already rejected the ancient world view, but did not yet want to embrace Copernicanism. The lecture presents the observations in a vivid way, shows the arguments in their historical context and illustrates how the heavens and the earth came closer together in the 17th century.

Speaker: Pierre Leich (President of the Simon Marius Society)

LIVE lecture by a guest speaker on the current state of research.

Further events at the location: https: //rausgegangen.de/locations/volkssternwarte-koln/

Homepage of the location: https://www.volkssternwartekoeln.de

Price information:

Tickets are available online in the observatory's webshop (no Box Office!)