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Eclipse Safety Information Found on the Inside of Each Pair of Solar Eclipse Glasses

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Eclipse Safety Information Found on the Inside of Each Pair of Solar Eclipse Glasses Dear Parent/Guardian: Due to the fact that Beaufort County is in the path of the Solar Eclipse, students will not have school on August 21, 2017. We encourage you and your family to take advantage of this rare scientific event, but please do so safely. Beaufort County School District has ordered custom solar eclipse glasses manufactured by American Paper Optics for every student who attends a Beaufort County Public School. Please read the Solar Eclipse safety information found on the inside of each pair of Solar Eclipse glasses. There is also additional safety information found on the next page. Each school will distribute the glasses to their students. The students have been actively engaged in lessons that will help them better understand the solar eclipse, so please do not hesitate to ask them what they have learned in class. Here are some basic facts about the Solar Eclipse to help start the conversation: 1. This will be the first total solar eclipse in the continental U.S. in 38 years. The last one occurred February 26, 1979. Unfortunately, not many people saw it because it clipped just five states in the Northwest and the weather for the most part was bleak. Before that one, you have to go back to March 7, 1970. 2. A solar eclipse is a lineup of the Sun, the Moon, and Earth. The Moon, directly between the Sun and Earth, casts a shadow on our planet. If you’re in the dark part of that shadow (the umbra), you’ll see a total eclipse. If you’re in the light part (the penumbra), you’ll see a partial eclipse. 3. A solar eclipse happens at New Moon. The Moon has to be between the Sun and Earth for a solar eclipse to occur. The only lunar phase when that happens is New Moon. 4. Everyone in the continental U.S. will see at least a partial eclipse. In fact, if you have clear skies on eclipse day, the Moon will cover at least 48 percent of the Sun’s surface. And that’s from the northern tip of Maine. 5. It’s all about totality. I know that 48 percent sounds like a lot. It isn’t. You won’t even notice your surroundings getting dark. And it doesn’t matter whether the partial eclipse above your location is 48, 58, or 98 percent. Only totality reveals the true celestial spectacle: the diamond ring, the Sun’s glorious corona, strange colors in our sky, and seeing stars in the daytime. 6. Yes, the Sun’s a lot bigger. Our daytime star’s diameter is approximately 400 times larger than that of the Moon. What a coincidence that it also lies roughly 400 times farther away. This means both disks appear to be the same size. How to View the 2017 Solar Eclipse Safely The only safe way to look directly at the uneclipsed or partially eclipsed sun is through special- purpose solar filters, such as “eclipse glasses” (example shown at left) or hand-held solar viewers. Homemade filters or ordinary sunglasses, even very dark ones, are not safe for looking at the sun. To date four manufacturers have certified that their eclipse glasses and handheld solar viewers meet the ISO 12312-2 international standard for such products: Rainbow Symphony, American Paper Optics, Thousand Oaks Optical, and TSE 17. Always inspect your solar filter before use; if scratched or damaged, discard it. Read and follow any instructions printed on or packaged with the filter. Always supervise children using solar filters. Stand still and cover your eyes with your eclipse glasses or solar viewer before looking up at the bright sun. After glancing at the sun, turn away and remove your filter — do not remove it while looking at the sun. Do not look at the uneclipsed or partially eclipsed sun through an unfiltered camera, telescope, binoculars, or other optical device. Similarly, do not look at the sun through a camera, a telescope, binoculars, or any other optical device while using your eclipse glasses or hand-held solar viewer — the concentrated solar rays will damage the filter and enter your eye(s), causing serious injury. Seek expert advice from an astronomer before using a solar filter with a camera, a telescope, binoculars, or any other optical device. More information: eclipse.aas.org (link is external) eclipse2017.nasa.gov .
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