How to watch safely
Never look at the Sun without certified solar viewing glasses that meet the ISO 12312-2 standard. Sunglasses, smoked glass and exposed film are not safe. Check the glasses for scratches or holes before you use them, and supervise children.
Never point binoculars, a telescope or a camera at the Sun unless a certified solar filter covers the front of the optics. Don’t use eclipse glasses to look through unfiltered optics: the concentrated sunlight will burn through them and into your eye.
A pinhole projector is a safe, simple alternative: let sunlight through a small hole in card onto a surface behind it and watch the projected crescent. Only during totality, when the Sun is completely covered, is it safe to look without protection. Put your glasses back on the moment the first bright point of sunlight returns.
Upcoming eclipses
Questions
Can I use sunglasses?
Can I photograph the eclipse with my phone?
What is the difference between total, annular and partial?
Eclipse times and circumstances computed by SkyMate with the open-source astronomy-engine library; for critical planning, cross-check with NASA/GSFC eclipse predictions (Espenak). Data & Licences