Astronomer Copernicus, or Conversations with God (Polish: Astronom Kopernik, czyli rozmowa z Bogiem) is a painting by the Polish artist Jan Matejko completed in 1873, in the collection of the Jagiellonian University, Kraków. It depicts Nicolaus Copernicus observing the heavens from a balcony in a tower with the cathedral in Frombork in the background. The canvas was purchased from a private owner by public subscription in Poland and hangs in the aula (Great Hall) of the Collegium Novum of the University. Matejko produced this 1872 artwork as part of a series of paintings intended to capture and represent key moments in the history of Poland to inspire the public.