12 January | Observation night in the Great Refractor

The Potsdam Great Refractor, inaugurated by Emperor Wilhelm II in 1899, is still the world’s fourth largest lens tele­scope. It combines the possibilities of mechanical manufacturing at the turn of the 20th century and the emerging demands of early astrophysical research – especially in the field of spectrography. After an explanatory demonstration, and if the sky is clear, guests can take a look at the stars with the help of the instrument.

The event is part of the "100 Hours Astronomy" campaign that marks the 100th anniversary of the International Astronomical Union (IAU) 2019. From January 10th to 13th amateur and professional astronomers around the world will be inviting you to share knowledge and enthusiasm for astronomy in a variety of formats.

7 - 9 pm, meeting point is in the dome of the refractor building.

Admission is free, no registration required.

In the case of inclement weather the instrument will be demonstrated.