Contact us

If you have a question you would like to ask, including admission queries, please contact us. There are a number of ways that you can contact us directly:

Visiting Address 
Oude Sterrewacht
Sterrenwachtlaan 11
2311 GW Leiden

Post Address
P.O. Box 331
2300 AH Leiden

Telephone: +31 (0)71 527 65 94


From Leiden Central Station it's only a 5-minute bike ride or a 20-minute walk to the Old Observatory. If you are coming by car, it is best to park at the carpark 'Haagweg'.

Due to construction, the Old Observatory can currently only be reached by foot or by bike. You can access the alternative routes through the Keizerstraat and the Zegersteeg (see the map drawn below). If you are unable to access the Old Observatory by foot and require assistance, please do contact us in advance at 

Last Modified: 15-01-2016