Star viewing at Sonnenborgh
Star viewing at Sonnenborgh

Hours & prices

Here you find information about our opening hours and prices.

Opening hours

Tuesday to Friday 11am - 5pm
Sunday 1 – 5pm

Group visits
Groups may also schedule visits after opening hours. To schedule a group visit, please contact us at 030 820 1420 or info@sonnenborgh.nl.

Star viewing
The observatory is open to the public every Friday and Saturday evening from mid September up until April. The Star Viewing Nights are held between 8 and 9:30pm on Friday and 7:30 and 9pm on Saturday (special kids program); booking is required.

Holidays
Sonnenborgh is closed on New Year’s Day (January 1st), the 2nd day of Easter, King’s Day (April 27th), Liberation Day (May 5th), Whit Monday and Christmas (December 25th & 26th).

 Archaeological finds at Bastion Sonnenborgh

Ticket prices

Adults: €7.50
Visitors under 18: €4.50
Visitors under 4: free admission
Students: €4.50
U-pas holders: €4.50
Museumkaart holders: free admission
Guided group tours: €75,- (costs for a group of 1–15 people, 1.5 hrs, excl. museum admission)