Now about eye safety. Anything you will read about this North American eclipse will stress high up in the story the importance of proper eyewear when viewing this astrological marvel.
- Moon's shadow to streak across Nebraska: Total solar eclipse Aug 21 to make rare coast-to-coast dash
- Eye safety critical is critical during total eclipse
- SMSU Planetarium plans for the total eclipse
- Vocabulary of the eclipse
- America's total eclipse floods market with fake sunglasses
This we found on the website eclipse2017.org:
"The only way to safely look at the Sun when it is not in total eclipse is through approved filter material designed and marketed expressly for direct solar viewing. ...
"Don't use homemade filters or ordinary sunglasses. Never look directly at the sun without eclipse glasses or solar viewers that are certified as safe. It can lead to serious injury.
"Look for ISO 12312-2 to be printed on the product. The certification means the glasses and solar viewers have met an international safety standard and are safe for your eyes."
According to eclipse2017.org, the material for safe viewing glasses is inexpensive and readily available through astronomical supply houses and at their website.
Also, do not look at the un-eclipsed or partially eclipsed sun through an unfiltered camera, telescope, binoculars, or other optical device — even using your eclipse glasses or viewer. Those optical devices concentrate the solar rays, damaging your eclipse glasses or viewer and seriously injuring your eyes.