The Great American Eclipse of August 21, 2017 is coming up quickly! This is the first eclipse to be visible in the continental U.S. in almost 40 years. More details here: https://eclipse2017.nasa.gov/.
In such an eclipse, the Moon gets in front of the Sun and blocks some or all of its light. In Oakland, we will have a partial eclipse, with 76% of the Sun’s area covered by the Moon. For us, the eclipse will begin at 9:01 am, and reach maximum at 10:15 am. By 11:37 am, the Sun will be uncovered once more. Such a partial eclipse -- where some of the Sun’s bright surface is showing -- is not safe to look at with the naked eye (or sunglasses). You must use special eclipse-viewing glasses or project an image of the Sun!
Your Oakland Public Library is a distribution site for safe viewing glasses through a partnership with