Eclipse Viewing and Safety Tips

To help you prepare for the eclipse on Monday, here are some viewing and safety tips from Columbus State University’s Coca-Cola Space Science Center.

In Columbus, the eclipse will be partial with 92% of the Sun’s area blocked. This partial eclipse will cover enough of the Sun to make a beautiful sight in the sky, but it is not totality and it is NOT safe to observe without protection.

The eclipse begins at 1:05 p.m. (EDT) with first contact. The maximum eclipse occurs at 2:37 p.m. At this time, 92% of the Sun will be blocked by the Moon. Last contact, or the end of the eclipse, occurs at 4:03 p.m.

Here are three safe methods for viewing the eclipse:


  1. Solar Glasses – There are many outlets still selling the safe solar glasses. These glasses should have the ISO reference number of 12312-2 printed on the glasses. NEVER USE THESE DEVICES IN CONJUNCTION WITH AN UNFILTERED OPTICAL DEVICE (like binoculars)!!

  2. Telescopes or binoculars with proper solar filters – As of this writing (8/15/17), some online companies still have solar telescopes and filters for cameras, binoculars, etc. available for purchase. These outlets include B & H Photo (www.bhphotovideo.com), Oceanside Photo and Telescope (www.optcorp.com), and Adorama (adorama.com).

  3. Pinhole Projection – There are many ways to make a simple pinhole projector for viewing the eclipse indirectly. This is the least expensive and safest way to experience the eclipse. No special tools or exotic materials are required, so anyone can make this simple device at home. The easiest way is to take two pieces of cardboard, poke a round hole in one of them, and let the sun shine through the hole onto the other piece. Thin cardboard (like cereal box material) works best to get an even hole. White cardboard works best to display the projected image. Though there are variations that can improve this technique, the simplest version works well and will allow the most people to enjoy the eclipse without any substantial investment in equipment. Here is more information about this method:


https://www.timeanddate.com/eclipse/make-pinhole-projector.html

https://www.timeanddate.com/eclipse/box-pinhole-projector.html

https://eclipse2017.nasa.gov/2d3d-printable-pinhole-projectors

https://eclipse2017.nasa.gov/how-make-pinhole-projector-view-solar-eclipse

https://www.exploratorium.edu/eclipse/how-to-view-eclipse

For more information on the eclipse: http://www.ccssc.org/2017eclipse.html