NASA: No glasses for the eclipse? Here's what you can do

The search for safety glasses to view Monday's solar eclipse is reaching panic mode for some, but NASA has a few suggestions for those out of luck.

On Monday afternoon, the eclipse will begin about 1:20, reach its maximum at 2:43 and end at 4.

Places around the Lehigh Valley are hosting special events to watch the eclipse.

The only safe way to look directly at the uneclipsed or partially eclipsed sun is through special-purpose eclipse glasses or hand-held solar viewers.

Amazon still has listings for glasses, and there's some for sale on local Craigslist and Facebook sales pages. The Philadelphia Zoo was selling some on Saturday, but a line of people was waiting when it opened and they sold out quickly.

Big pay day @ Philly Zoo where people bought eclipse glasses for $5 @ the zoo gift shop and tried to sell them for $50
-- Yvette Ousley (@YvetteOusley) August 19, 2017

There are concerns about which glasses are safe, following recalls of some glasses, including by Amazon.

The American Astronomical Society, AAS, has a list of reputable vendors of manufacturers and authorized dealers of solar filters and glasses, and says glasses should carry the international safety standard number "ISO 12312-2."

NASA has a web page devoted to the eclipse, with information on safety, weather forecasts and more. That includes printable plans to create a pinhole projector, as well as video instructions on how to make one from a cereal box.

The AAS also has a roundup of instructions for pinhole and optical projections here.

NASA will also be live-streaming the eclipse here, following the path from Oregon to South Carolina.

Sarah Cassi may be reached at scassi@lehighvalleylive.com. Follow her on Twitter @SarahCassi. Find lehighvalleylive.com on Facebook.

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