200 years Observatory - Watching the Sun: A 200-Year Journey

WHEN? Once a month, in French, Dutch or English. The tour will take around 1h30min. 03/09/2026 10h (NL) - 10h30 (FR) - 14h (ENG) 16/10/2026 10h (NL) - 10h30 (FR) - 14h (ENG) 13/11/2026 10h (NL) - 10h30 (FR) - 14h (ENG) 30/11/2026 10h (NL) - 10h30 (FR) - 14h (ENG) WHERE ? Meeting point: main entrance of the Observatory (Avenue circulaire 3, 1180 Brussels) Be on time! All visitors will be collected as a group at the gate. It is not possible to join the tour after the start. FOR WHOM ? Anyone is welcome but the number of participants is limited so you need to register well in advance. Unfortunately, a large part of the historical site is not accessible to persons with reduced mobility. There are many stairs to climb to the solar dome, for example.