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:
2311 GW Leiden
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 (see Google Maps). If you are coming by car, it is best to park at the carpark 'Haagweg' (see our directions in Dutch).
If you are unable to access the Old Observatory by foot and require assistance, please contact us in advance by sending us an email.