Are you ready for August 21, 2017?
According to Nasa.govpath of totality can see one of nature’s most awe-inspiring sights - a total solar eclipse. This path, where the moon will completely cover the sun and the sun's tenuous atmosphere - the corona - can be seen, will stretch from Lincoln Beach, Oregon to Charleston, South Carolina. Observers outside this path will still see a partial solar eclipse where the moon covers part of the sun's disk.
Are you taking safety precautions?
You never want to look directly at the sun without appropriate protection except during totality. That could severely hurt your eyes. However, there are many ways to safely view an eclipse of the sun including direct viewing – which requires some type of filtering device and indirect viewing where you project an image of the sun onto a screen. Both methods should produce clear images of the partial phase of an eclipse. Click here for eclipse viewing techniques and safety. (https://eclipse2017.nasa.gov/eclipse-who-what-where-when-and-how)
Vendors of goggles/solar filters
The following well-known telescope and solar-filter companies manufacture and/or sell eclipse glasses (sometimes called eclipse shades) and/or handheld solar viewers that have been verified by an accredited testing laboratory to meet the ISO 12312-2 international safety standard for such products. They are listed in alphabetical order; those with an asterisk (*) are based outside the United States.
Solar Viewer Brands
- American Paper Optics (Eclipser) / EclipseGlasses.com
- APM Telescopes (Sunfilter Glasses)*
- Baader Planetarium (AstroSolar Silver/Gold Film)* [see note]
- Celestron (EclipSmart Glasses & Viewers)
- DayStar (Solar Glasses)
- Explore Scientific (Solar Eclipse Sun Catcher Glasses)
- Lunt Solar Systems (SUNsafe SUNglasses) [see their unique kid-size eclipse glasses]
- Meade Instruments (EclipseView Glasses & Viewers)
- Rainbow Symphony (Eclipse Shades)
- Seymour Solar (Helios Glasses)
- Thousand Oaks Optical (Silver-Black Polymer & SolarLite)
- TSE 17 (Solar Filter Foil)*
Note: Baader Planetarium's AstroSolar Safety Film and AstroSolar Photo Film, sold in the U.S. by Alpine Astronomical and Astro-Physics (see below), are not certified to meet the ISO 12312-2 international safety standard and are not designed to work as eclipse shades or handheld solar filters. Baader's AstroSolar Silver/Gold Film, on the other hand, does meet the ISO 12312-2 safety standard for filters for eyes-only direct viewing of the Sun.
Numerous other astronomy- and science-related enterprises and organizations sell eclipse glasses made by the companies listed above. If you buy from any of these businesses, you know you are getting ISO-compliant safe solar viewers.
- Free eclipse kit and downloadable resources from NASA https://eclipse2017.nasa.gov/eclipse-kit
- Eclipse Live Stream https://www.nasa.gov/eclipselive