Partial solar eclipse on Wednesday 12 August

Given the favourable weather forecasts, media coverage and the fact that it is the holiday season, we are expecting a large number of visitors on 12 August. We are delighted to be able to offer everyone interested the chance to observe the partial solar eclipse and to welcome the public. At the same time, however, many of our presenters are away due to the holiday season.

We ask all visitors to be patient and to help ensure that the evening is a wonderful and unforgettable experience for everyone: when parking, whilst queuing to view the eclipse, and generally whilst at the observatory. We would also be grateful if you could share your solar eclipse glasses with other visitors from time to time. Thank you very much for your understanding.

Here, you can observe the progress of the solar eclipse using various instruments, either directly through the eyepiece with strong solar filters or as a projection onto a screen or pane attached to the telescope itself.

No booking is required. In the event of bad weather (overcast skies), the observatory will remain open, but direct observation will not be possible. Instead, we will be showing a live stream.

Start of the eclipse: 7.25 pm

Maximum (91.8% coverage): 8.19 pm

End (sunset): 8.46 pm

Booking mandatory

For logistical reasons, we request that visitors book their visit in the week before the event. The number of visitors is limited to 30 and to a maximum of 5 persons (including children) per booking. Events without bookings will not take place.

• Next nightly observation: friday night 14 Aug 2026. There is no more seat available.
  You can register on the waiting list (Reservations already on the waiting list: 40).
• Next observation of the Sun: sunday morning 6 Sep 2026, 10 to 12 am. Remaining seats: 23.
  Book your visit for 6 Sep 2026!

The registered visitors are expected to be there at the start of the visit; the Observatory doors will be closed once the visit has begun

The public tours are aimed at individuals, families or small groups of up to 5 people. For organised groups (companies, clubs, etc.), we kindly ask you to organise a group tour in the interests of fairness.