Paul Lewis
By Lola Alapo/University of Tennessee
T minus 18 days. On Monday, August 21, a total solar eclipse—when the disk of the moon completely covers the sun—will be visible in the United States along a path from central Oregon through Tennessee and on to South Carolina.
In Tennessee, many points to the south and southwest of Knoxville will experience a total eclipse. Knoxville, however, will have only a 99.75 percent partial eclipse.
UT experts are providing tips on how East Tennesseans can view the eclipse safely and protect their eyes, wherever they’re viewing. You can click on any of the links below to learn more.
Related: Everything You Need to Know about Eclipse 2017
The university will host a Solar Sun Day from 3 to 4:30 p.m. on Sunday, August 6, on the roof of the Nielsen Physics Building. The event is free and open to the public. Participants will observe the sun through telescopes and will learn about the August 21 total eclipse and how to build devices for viewing the sun indirectly. They also will see an eclipse simulation in UT’s planetarium and receive a free pair of solar glasses.
“Do not consider sunglasses as a safety mechanism for looking at the sun,” said Paul Lewis, director of space science outreach in the UT Department of Physics and Astronomy, who will lead Solar Sun Day.
Sean Lindsay, astronomy coordinator and lecturer in the Department of Physics and Astronomy, noted that during the total eclipse, it goes from as bright as day to as dark as dark twilight in a matter of minutes.
“Your brain is not ready to handle this, because all of a sudden it is nighttime in the middle of the day,” Lindsay said. “You can see some of the bright stars. Even more strange is when you look up and where there used to be a sun, it literally looks like there is a black hole in the sky.”
Then comes the most important part of a total solar eclipse: the corona, which is a brilliantly glowing white light—almost like a halo—around the sun. It is the outermost layer of the sun’s atmosphere and never seen except during a total eclipse.
Up to this point, solar glasses are needed to view the eclipse safely, Lindsay said. The corona is the only part of a total solar eclipse that is safe to view with the naked eye. Solar glasses are also a requirement for those viewing a partial eclipse. The solar glasses are made up of black polymer that blocks out everything but the sun.
Learn more about how to get solar glasses.
This story was first published on UT’s Tennessee Today on Thursday, August 3.
***
Some of the viewing sites in Oak Ridge include the University of Tennessee Arboretum on South Illinois Avenue, American Museum of Science and Energy/Manhattan Project National Historical Park Visitor Center on South Tulane Avenue, and East Tennessee Technology Park on Heritage Center Boulevard.
The total solar eclipse in Oak Ridge is expected to last 27 to 31 seconds at approximately 2:33 p.m. EDT August 21.
You can see our previous stories on the solar eclipse here.
More information will be added as it becomes available.
Do you appreciate this story or our work in general? If so, please consider a monthly subscription to Oak Ridge Today. See our Subscribe page here. Thank you for reading Oak Ridge Today.
Copyright 2017 Oak Ridge Today. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.
Leave a Reply