Dedicated to the safe observation of the
The United States saw a Total Solar Eclipse!
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"...And we'll see YOU... in the shadow!!"

Did you order glasses from us? Are you worried about the big recall?
How do you know the glasses you got from us were safe to use? is on the American Astronomical Society's approved vendor list for eclipse glasses!

Also, please read the blog post we wrote about the safety of glasses ordered from!

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What is a total solar eclipse?

Let's get more technical!

Please see our blog post about eclipse calculations first!

Then, you can enjoy studying the "Besselian Elements" for the 2017 total eclipse:

Besselian Elements for the total solar eclipse of August 21, 2017

These were calculated by none other than "Mr. Eclipse" himself - Fred Espenak!
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