Opening hours
In the months of July and August we are also open on Mondays from 10:00 to 17:00.
During public holidays and school vacations other (extra) opening hours than usual may apply.
| Monday | closed |
| Tuesday | 10:00 – 17:00 |
| Wednesday | 10:00 – 17:00 |
| Thursday | 10:00 – 17:00 |
| Friday | 10:00 – 17:00 |
| Saturday | 10:00 – 17:00 |
| Sunday | 10:00 – 17:00 |
| 28 February 2022 | 10:00 – 17:00 |
| 2 May 2022 | 10:00 – 17:00 |
| 11 July 2022 | 10:00 – 17:00 |
| 18 July 2022 | 10:00 – 17:00 |
| 1 August 2022 | 10:00 – 17:00 |
| 8 August 2022 | 10:00 – 17:00 |
| 15 August 2022 | 10:00 – 17:00 |
| 22 August 2022 | 10:00 – 17:00 |
| 29 August 2022 | 10:00 – 17:00 |
| 24 October 2022 | 10:00 – 17:00 |
| 26 December 2021 | 10:00 – 17:00 |
| Good Friday – 15 April 2022 | 10:00 – 17:00 |
| Easter Sunday – 17 April 2022 | 10:00 – 17:00 |
| Easter Monday – 18 April 2022 | 10:00 – 17:00 |
| King’s Day – 27 April 2022 | closed |
| Ascension Day – 26 May 2022 | 10:00 – 17:00 |
| White Sunday- 5 June 2022 | 10:00 – 17:00 |
| White Monday- 6 May 2022 | 12:00 – 17:00 |
| Christmas Eve – 24 December 2022 | 10:00 – 16:00 |
| Christmas Day – 25 December 2022 | closed |
| Boxing Day – 26 December 2022 | 10:00 – 16:00 |
| New Year’s Eve – 31 December 2021 | 10:00 – 16:00 |
| New Years day – 1 January 2023 | closed |
Opening hours Louwman Historic Telescopes
The Louwman Historic Telescope exhibition is open every first Friday of the month from 10:00 to 17:00 hrs. For groups, please make an appointment.