200 Years of the Royal Observatory of Belgium and 50 Years of the National Geographic Institute
At a glance
| Country | Belgium |
|---|---|
| Year | 2026 |
| Issue date | September 2026 |
| Coin type | Commemorative coin |
| Mintage | expected 155.000 (150.000 / 5.000) |
| Catalogue number | BE-26 G2 |
| Designer | Iris Bruijns |
| Rarity | €€€€€ what does this mean? |
| Edge lettering | ![]() |
| Market value (approx.) | 14 € · guide price, uncirculated Unlock · for members |
Coin description
200 Jahre Königliche Belgische Sternwarte und 50 Jahre Nationales Geographisches Institut
Further information
The Royal Observatory of Belgium in Uccle is among the oldest and scientifically most significant astronomical institutions in Europe. Founded in 1826 under King William I, it developed over the 19th and 20th centuries into a center for timekeeping, seismology, and astrophysics. Belgium played an outsized role in international scientific work: the observatory long coordinated the country's official time signal and supplied data for European seismology. Today it also conducts solar observation and analyzes fluctuations in the Earth's rotation — fields of research with global relevance.
The National Geographic Institute of Belgium, founded in 1976 out of the military cartography service, is the country's central authority for official topographic maps, geodesy, and spatial reference data. Its work forms the basis for urban planning, infrastructure, and digital geoinformation services in Belgium. In the European context, the institute contributes to cross-border geodata projects and EU initiatives to harmonize geographic information. In 2026, Belgium honors both institutions together: the observatory's 200-year history and the geographic institute's 50th anniversary.
Technical data
| Face value | 2 euro |
|---|---|
| Material | Bimetallic – outer ring: cupronickel; centre: three layers (nickel-brass / nickel / nickel-brass) |
| Weight | 8.5 g |
| Diameter | 25.75 mm |
| Thickness | 2.20 mm |





