Hours & Prices
Tuesday to Friday 11am - 5pm
Sunday 1 – 5pm
Public observation evenings
The observatory is open to the public every Friday and Saturday evening from mid September up until mid April. The public observation sessions are held between 8 and 9:30pm on Friday and 7:30 and 9pm on Saturday (special kids program); booking is essential (www.sonnenborgh.nl) Admission: On Friday adults & children €10. On Saturday children €10, accompanying adults €8. No discounts are valid on these evenings. Online booking is required. Click here for online booking.
Children from 4 to 17 years €4.50
Children from 0 to 3 years free
Alumni card free
Guided Group Tours
Cost for a group of 1–15 people, 1.5 hrs € 65.00 (excl. admission)
It is also possible to arrange group tours outside opening hours. Please contact us to discuss your wishes.