A solar eclipse is visible across large parts of Western Europe this Wednesday evening, Aug. 12 [1, 2].
The event marks a rare astronomical occurrence for the region. This is the first total solar eclipse to affect Europe since 1999 [3].
Uwe Gradwohl, head of the science editorial department at SWR, said the event is an astronomical coincidence that typically provides a total eclipse somewhere in the world every 1.5 years [4]. While the eclipse is visible across Western Europe, the degree of coverage varies by location.
In Heilbronn, Baden-Württemberg, conditions are considered optimal for viewing [5, 6]. Gradwohl said that Heilbronn has clear sight and no clouds, providing ideal conditions for the eclipse [6]. This is attributed to clear weather forecasts and a favorable geographic angle of the moon relative to the sunset [5, 6].
Other regions will experience a partial eclipse. In Duisburg, the moon is expected to cover approximately 88% of the solar disk [7]. This variation in coverage is common during solar eclipses, where the path of totality only covers a narrow strip of the Earth's surface while other areas see a partial event [1, 7].
Observers are advised to use proper eye protection to avoid permanent retinal damage. The event occurs shortly before sunset, which affects the viewing angle for those in the northern latitudes [4].
“An astronomical coincidence that on average provides a total eclipse somewhere worldwide every one and a half years.”
The 2026 eclipse highlights the geographic lottery of astronomy, where a few dozen miles can determine whether a viewer experiences total darkness or a partial dimming. Because total eclipses are infrequent for any single location—with the last European total eclipse occurring in 1999—this event serves as a significant public science engagement opportunity for Western Europe.
