At exactly 7:22 p.m. on August 12, 2026, a particularly rare natural spectacle will begin over Vienna. The Moon will pass in front of the Sun, so that by 8:13 p.m., nearly 85 percent of the Sun’s disk will be obscured. Since this astronomical event ends shortly before sunset at 8:14 p.m., there will be a brief viewing window of just 45 minutes. We’ve looked into the most important safety precautions for the partial solar eclipse in August 2026 for you.
Danger to the Retina: Why Sunglasses Fail
Many people instinctively reach for dark sunglasses or old X-ray films because they reduce the glare. While this does make the sunlight appear dimmer, medical experts warn against such makeshift solutions, as they allow invisible UV rays to pass through unimpeded. Because the human retina has no pain receptors, you won’t notice permanent tissue damage until hours or days after the event.
The Right Protection for a Safe Experience
Anyone who wants to observe this celestial event needs special glasses certified to ISO 12312-2. First, you should thoroughly check the protective film for scratches or holes before putting on the glasses. Just as with viewing the eclipse with the naked eye, you should also exercise caution when using cameras, telescopes, or cell phone lenses: Although magnified images are tempting, concentrated beams of light can damage the eye within milliseconds.
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The Best Viewing Spots in Vienna
In addition, an unobstructed view toward the west is crucial for a good viewing experience. At the Danube Tower in Vienna, free protective glasses will be distributed on the observation deck starting at 7:00 p.m. The New Danube near Copa Beach and the Vienna Planetarium also offer ideal meeting spots for those interested.
If, after the event, you experience sudden vision loss or dark spots in your field of vision, you should see an ophthalmologist immediately. As long as you consistently follow all safety guidelines, nothing will stand in the way of a fascinating natural spectacle in the Viennese evening sky.
