These two great value packages include essential eye protection and exhaustive guides to the two upcoming solar eclipses in North America.
Celestron Solar Power Viewers at Amazon for $11.95The Celestron Solar Eclipse Glasses Observing Kit, which costs US$11.95, contains everything required for four people to learn everything they need to know about the two upcoming solar eclipses and stay safe while viewing them. In the package are four pairs of solar eclipse glasses from American Paper Optics. They're wrapped in packs of two. Each pair is black with a U.S. flag between the eyes and a Celestron logo, which also adorns the arms.
These are a slight step up from basic solar eclipse glasses in that they introduce a modicum of magnification thanks to the use of plastic lenses with solar-safe filters in front. They're made of cardboard and are foldable. Also in the package is a double-sided eclipse map poster.Both of these products use scratch-resistant polymer lenses that filter out 100% of ultra-violet and infrared rays and 99.999% of intense visible sunlight. They both make the sun look orange.
For both designs, it's best to keep them safely wrapped up in plastic until the big day. Even a pinhole in the filters — which can be caused just by dropping them on a lawn — can direct a dangerous amount of sunlight onto your retina. If you can see your eclipse glasses are torn, scratched, or coming loose from the cardboard, definitely don't use them.
Shipping only with the Celestron Solar Eclipse Glasses Observing Kit, the Espenaks' Be EclipSmart: The Complete Solar Eclipse Observing Guide is excellent. Colorful and expertly written, there are simple explanations of what an eclipse is and why and when they occur through to. There's a brief delve into the history of eclipses and a focus on staying safe.
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