Inaugurated in 1884, it is a centre for research into astrophysics and the measurement of time. A visit that promises unique discoveries!
Dates
Opening periods
29 October at 3pm
26 November at 2.30pm 25/02/2026 14:30
25/03/2026 14:30
22/04/2026 15:00
Réservation
Practical information
Activities
Cultural activities
Guided tours
Rates
| MINI | Max | Additional information | |
|---|---|---|---|
| Free of charge | 0 | Free: for disabled people, jobseekers and children under 12. | |
| Basic rate | 9 | until October | |
| Basic rate | 10 | from November | |
| Special rate | 6 | Reduced rate: Students, under-18s, member associations of the Tourist Office and Convention Bureau | |
| Special rate | 7 | (From November 2025) Reduced rate : Students, under-18s, member associations of the Tourist Office and Convention Bureau | |