Open Days 2020
February 29 and 1 march 2020
On Fabruary 29th and March 1st the Leiden Old Observatory opened it's doors for the yearly open days, the 'Sterrenkijkdagen'. As in previous years, this event was a huge success, with approximately 1300 visitors over the whole weekend. If you visited the event, you probably learned something about the special properties of light in the Light Lab, travelled through the universe in the mobile planetarium, and looked inside the telescope domes. If you were lucky you may even have glimpsed something through the telescope at night.