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Contact us

We always try to answer questions about the Old Observatory as good as possible. Choose from the dropdown menu below where you have a question about.

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Then you can best contact the tour coordinator Carmen Turner at rondleidingen@strw.leidenuniv.nl

Then you can best contact the Service Desk of the Kamerlingh Onnes Gebouw.

You can contact the institute Leiden Observatory via email or by visiting the institute's website.

For all other questions you can contact Pedro Russo.

For very general questions you can also call +31 71 527 1891 on Saturdays and Sundays between 11:00 and 16:00. On other days you can call to the secretaries from the institute Leiden Observatory at the BioSciencePark on +31 71 527 5737 during working hours.


The adress of the main entrance of the Old Observatory is:
Sterrewachtlaan 11
2311 GP Leiden

Access to the visitors' centre is granted by the Hortus Botanicus, which is at the address:
Rapenburg 73
2311 GJ Leiden


We strongly recommend travelling to the Old Observatory by public transport. If you want to visit by car, these are the possibilites:

There are some parking spaces on the Sterrenwachtlaan, but these are reserved for residents of the street. These cannot be used by visitors of the Old Observatory. There are a number of parking lots available in Leiden. For their locations, you can look at the website of the Leiden municipality.

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