Opening hours
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 |
| 19 February 2024 | 10:00 – 17:00 |
| 29 April 2024 | 10:00 – 17:00 |
| 8 July 2024 | 10:00 – 17:00 |
| 15 July 2024 | 10:00 – 17:00 |
| 22 July 2023 | 10:00 – 17:00 |
| 29 July 2024 | 10:00 – 17:00 |
| 5 August 2024 | 10:00 – 17:00 |
| 12 August 2024 | 10:00 – 17:00 |
| 19 August 2024 | 10:00 – 17:00 |
| 26 August 2024 | 10:00 – 17:00 |
| 21 October 2024 | 10:00 – 17:00 |
| 28 October 2024 | 10:00 – 17:00 |
| 23 December 2024 | 10:00 – 17:00 |
| 30 December 2024 | 10:00 – 17:00 |
| Good Friday – 29 March 2024 | 10:00 – 17:00 |
| Easter Sunday – 31 March 2024 | 10:00 – 17:00 |
| Easter Monday – 1 April 2024 | 10:00 – 17:00 |
| King’s Day – 27 April 2024 | closed |
| Ascension Day – 9 May 2024 | 10:00 – 17:00 |
| White Sunday- 19 May 2024 | 10:00 – 17:00 |
| White Monday- 20 May 2024 | 10:00 – 17:00 |
| Christmas Eve – 24 December 2024 | 10:00 – 16:00 |
| Christmas Day – 25 December 2024 | closed |
| Boxing Day – 26 December 2024 | 10:00 – 16:00 |
| New Year’s Eve – 31 December 2024 | 10:00 – 16:00 |
| New Years day – 1 January 2025 | 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.