Sci-tech

Total solar eclipse: What you need to know

Total solar eclipse: What you need to know

The last total solar eclipse over the continental US was in February 1979, when it was visible only from five Northwestern states. When the Earth, moon and sun line up just right, the moon blocks the sun's entire surface, creating the total eclipse.

The solar eclipse is coming.

Astrophotographer Jake Breed gives a total solar eclipse photography demonstration at Oaks Bottom Wildlife Reserve in Southeast Portland, Oregon. School lets out during the time of day when it will be most unsafe to look at the sun. On Monday, August 21, 2017, a solar eclipse can be seen across all of North America.

On Aug. 21, part of OR will see the moon completely block the sun's face in a total solar eclipse. Included will be important safety information and viewing glasses, a menu of related Chabad programs, and suggested readings and Torah study. Looking directly at the sun, even during a partial eclipse, can easily damage your eyes. Areas that only get a part of the moon's shadow will be able to witness a partial solar eclipse- it's when only part of the sun is blocked by the moon.

Temperatures and cloud conditions can change rapidly during an eclipse; animals will fall silent while it's occurring. The totality path is about 70 miles wide, and anyone in that path can see total coverage.

"It is fortuitous the eclipse is happening on the first day of school at OSU", Garde said.

"This is the first time we're able to use measurements from the ground and from space to simulate the moon's shadow going across the face of Earth in the United States and calculating energy reaching the Earth", Wen said. This is more common than a total solar eclipse, but it's nothing to sniff at if this is your first eclipse.

Though the Joliet eclipse will not be total, Dcruz said, "We'll see the sun covered 88.4 percent by the moon at the peak, which is 1:19 p.m". There are custom solar filters available for cameras, binoculars, and telescopes, but talk with an astronomer before using one.

The 10-pack of Soluna Solar branded Eclipse Glasses sell for $16.95.

Gutsch, a retired distinguished professor of the College of the Arts and Sciences at Saint Peter's University in Jersey City and former chairman of the American Museum of Natural History's Hayden Planetarium in New York City, cautions that viewing and photographing the eclipse needs to be done safely.

Using a lens with a focal range of 100mm-400mm is optimal so you can fill the frame with the eclipse.