Edinburgh Goes Dark: A Partial Solar Eclipse on Calton Hill
- Lomond
- Aug 11
- 4 min read
Updated: 2 days ago
On the evening of Wednesday 12 August 2026, Edinburgh will experience something extraordinary. As the Sun begins its descent toward the horizon, the Moon will slide across it, covering up to 90% of our star and casting the city in an eerie, twilight glow. This is the most dramatic solar eclipse visible from the UK since 1999, and from Edinburgh it happens right at sunset, making it one of the most photographically stunning astronomical events of the decade.
The Astronomical Society of Edinburgh is hosting a free public viewing event on Calton Hill at the historic City Observatory, with solar telescopes and free eclipse glasses for attendees. But whether you head up the hill or watch from your own window, this is a moment worth preparing for, especially if you're hosting guests in the city this week. This is the kind of experience people remember for a lifetime, and as a host, you're in a position to help your guests witness it safely.
Here's everything you need to know about the eclipse, the event on Calton Hill, the history of Edinburgh's observatory, and how to make sure you and your guests can watch it without damaging your eyes.
THE ECLIPSE: WHAT'S HAPPENING
On 12 August 2026, a total solar eclipse crosses Greenland, Iceland, and northern Spain — but Edinburgh sees a deep 90.6% partial eclipse at sunset.
TIMINGS FOR EDINBURGH
Eclipse begins 6:08pm, maximum coverage 7:05pm (90.7%), ends 8:00pm — with the Sun low in the western sky for dramatic viewing.
THE VIEWING EVENT ON CALTON HILL
The Astronomical Society of Edinburgh hosts a free public viewing at the City Observatory with solar telescopes and free eclipse glasses from 6pm to 8pm.
GO STARGAZING: FULL EVENT DETAILS
Go Stargazing lists the event with weather forecasts and directions to the Playfair Observatory on Calton Hill.
CALTON HILL: EDINBURGH'S OBSERVATORY SINCE 1776
The first observatory on Calton Hill was founded in 1776 by Thomas Short, an optician from Leith, making this one of the oldest astronomical sites in Britain.
THE PLAYFAIR OBSERVATORY
The main building was designed by William Henry Playfair in 1818 in neoclassical Greek style and became the Royal Observatory during George IV's visit in 1822.
WHERE TO WATCH IF YOU CAN'T MAKE CALTON HILL
Any spot with a clear view of the western horizon works — Arthur's Seat, Salisbury Crags, Portobello Beach, or even a west-facing window.
SAFETY: NEVER LOOK DIRECTLY AT THE SUN
The only safe way to look at the Sun during a partial eclipse is through certified ISO 12312-2 solar viewing glasses. Regular sunglasses are NOT sufficient.
HOW TO TELL IF YOUR ECLIPSE GLASSES ARE SAFE
Genuine eclipse glasses must comply with the ISO 12312-2 international standard and should have clear labelling.
NO GLASSES? MAKE A PINHOLE PROJECTOR
A simple pinhole projector using cardboard and aluminium foil lets you safely watch the eclipse indirectly by projecting the Sun's image onto paper.
HOSTING TIP: ECLIPSE GLASSES FOR GUESTS
If you have guests staying this week, leaving a pair of ISO 12312-2 eclipse glasses on their pillow is the kind of thoughtful touch that earns five-star reviews.
THE TOTAL ECLIPSE PATH
The total eclipse passes over Greenland, Iceland, the Atlantic Ocean, northern Spain and northeastern Portugal — but Scotland sees one of the best partial views in Europe.
CAMERA OBSCURA: ANOTHER EDINBURGH VIEWING SPOT
Edinburgh's Camera Obscura on the Royal Mile is also promoting eclipse viewing with the partial eclipse at 90% coverage from 6:08pm.
BBC: WHEN AND WHERE TO SEE THE ECLIPSE IN SCOTLAND
The BBC reports that up to 95% of the Sun will disappear behind the Moon in the most dramatic eclipse visible from the UK since August 1999.
AD : EXPLORE EDINBURGH'S HIDDEN GARDENS
After the eclipse, explore Edinburgh's botanical heritage with a self-guided audio walking tour through the city's historic food and medicine gardens.
The last time Scotland saw an eclipse this deep was 1999. The next one won't come for years. So on Wednesday evening, step outside, find a clear view of the western sky, and watch as the Moon takes a bite out of the Sun over Edinburgh. It's the kind of moment that makes a trip unforgettable, and the kind of moment that makes hosting in this city so special.
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