Night at the Large Refractor

Night at the Large RefractorThe Royal Observatory of Belgium opens the dome of its large refractor for a unique nocturnal visit! Visit the dome of the old refractor and experience how astronomers carried out their observations in the past. If the weather is clear, you will be able to observe objects in the sky with the historical instrument as well as with smaller, modern ones on the site.WHEN? Once a month starting in September, in French (FR) or Dutch (NL). Each visit will last about 2h40min. It will not be possible to leave the site before the end. Four such events are planned in 2026. More dates might come later. 18/09/2026, 20h30 - 23h10 : in FR (EN possibly used at some point) 16/10/2026, 19h30 - 22h10 : in NL (EN possibly used at some point) 20/11/2026, 18h30 - 21h10 : in FR (EN possibly used at some point) 16/12/2026, 18h30 - 21h10 : in NL (EN possibly used at some point) WHERE? The meeting point is the main gate of the Royal Observatory of Belgium (address: Avenue circulaire 3, B-1180 Brussels). It will be possible to park on the premises of the Observatory. All visitors will be picked up at the meeting point as a single group. FOR WHOM? Unfortunately, the building is not adapted to persons with reduced mobility (the dome can only be accessed via a staircase and ladders will be used during the observations). Children of age 12 yrs and older are welcome. The number of visitors is limited to 40 per evening, so register (well) in advance. REGISTRATION The visit is free though registration is mandatory. PRACTICAL INFORMATION - Be on time at the gate! Visitors will be picked up as one group upon entrance. It will not be possible to join at a later time. - Bring warm clothing (for inside the dome and outside), as well as a small torch.Night at the Large RefractorLocation: Avenue Circulaire, 3, 1180 Uccle