Save the date: Open Day 2023

On 14 October 2023, the Max Planck Institute for Astronomy and the Haus der Astronomie in Heidelberg on the Königstuhl hill will open their doors from 10 a.m. until 5 p.m. and offer a varied astronomical programme.

Trailer for the
Open Day

Additional participants are the Landessternwarte Königstuhl, the Max Planck Institute for Nuclear Physics, the Klaus Tschira Foundation, die Forscherstation (Klaus-Tschira-Kompetenzzentrum für frühe naturwissenschaftliche Bildung) and other partners.

Travel directions

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To ensure smooth arrival and departure for the Open Day, one-way traffic will be set up at the Heidelberg Königstuhl. The route is signposted accordingly.

Please note that parking on the Königstuhl is limited. Only vehicles with severely disabled passengers will be allowed through to the MPIA campus. You will find parking spaces at Märchenparadies and signposted along the road at Königstuhl to the MPIA campus.

We therefore advise you to use the bus line 39. In addition to the usual schedule, there will be additional service vehicles, so that a frequency of about 15-20 minutes will be offered. The busses 39 and 39E will also run in one-way operation.


Lectures and hands-on stations will focus on new astronomical findings - from the formation of our galaxy and our solar system to planets around other stars. Our scientists will be happy to answer any questions you may have.

Laboratories and workshops show how astronomical instruments are made and the special demands of working on the largest ground-based telescopes in the world or on space telescopes.

We will also give you an impression of the international environment at the MPIA. Astronomers from dozens of countries work together at MPIA and in this way enrich research.

We offer an exciting and entertaining programme in the House of Astronomy. For the younger visitors we have prepared an astronomical children's programme.

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