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By B. Ralph Chou, MSc, OD, Associate Professor, School of Optometry, University of Waterloo


"The only time that the Sun can be viewed safely with the naked eye is during a total eclipse, when the Moon completely covers the disk of the Sun. It is never safe to look at a partial or annular eclipse, or the partial phases of a total solar eclipse, without the proper equipment and techniques. Even when 99% of the Sun's surface (the photosphere) is obscured during the partial phases of a solar eclipse, the remaining crescent Sun is still intense enough to cause a retinal burn, even though illumination levels are comparable to twilight." "In spite of these precautions, the total phase of an eclipse can and should be viewed without any filters whatsoever. The naked eye view of totality is not only completely safe, it is truly and overwhelmingly awe-inspiring!"

For the full article, visit the NASA website at http://eclipse.gsfc.nasa.gov/SEhelp/safety2.html

 

A once-in-a-lifetime total solar eclipse is expected to provide a welcome boost for tourism in the north of Scotland next month as stargazers flock to witness the spectacle…..By Ashleigh Barbour

A once-in-a-lifetime total solar eclipse is expected to provide a welcome boost for tourism in the north of Scotland next month as stargazers flock to witness the spectacle…. Tourism chiefs are now getting ready for an influx of visitors to the Scottish islands. Special cruises have been organised to take holiday makers north into the path of the eclipse, many of which are set to call in to port in the Highlands and Islands. Ian Fordham, chairman of Tourism Hebrides, added: “This solar eclipse is a welcome boon at the start of the tourist season.

“This solar eclipse won’t just appeal to stargazers but everyone will find it quite striking.”

https://www.pressandjournal.co.uk/fp/news/scotland/494892/total-solar-eclipse-boost-tourism-north-scotland/