aside The Total Solar Eclipse Of The Sun Can Be Viewed From USA On August 21, 2017

On August 21, 2017, NASA will be live streaming this event at NASA Eclipse 2017 Live – Streaming Video of August 21 Total Solar ..https://www.nasa.gov/eclipselive-info

Here is NASA’s instructions on how to make glasses to safely view this phenomenon. How to Make a Solar Eclipse & Sun Viewer | Total Solar Eclipse 2017https://eclipse2017.nasa.gov/how-make-solar-eclipse-sun-viewer

PHOTO/ NASA

Here is a simple step by step instruction manual shared with us by a 8/16/17 LiveScience report:

“The best way to view an eclipse is through a simple pinhole camera. To build one, all you need are a few household supplies: a box (a shoe box will work), a small piece of tinfoil, a white sheet of paper, tape, a pin or needle, and a box cutter or X-Acto knife. [Photos show the step-by-step process of making a solar eclipse viewer.]”

Here’s how to make a solar eclipse viewer 5 easy steps:”

Step 1. “Cut a small hole (about 1 inch across) in one end of the shoe box, near an edge.”

Step 2. “Tape a piece of tinfoil over the hole.”

Step 3. “Using a pin or needle, punch a hole in the center of the foil.”

Step 4. “Tape a small piece of white paper to the inside of the box, at the opposite end from the foil-covered hole. The paper should be positioned so that light entering the box through the pin hole will hit it. This is where you’ll look for the sun.”

Step 5. “Cut a 1-inch-diameter hole in the box near the image screen (the white piece of paper), but on a different side of the box — the side adjacent to the screen. This is your viewing hole; it must be positioned such that you can look through it at an angle and see the image screen.”

“When the time comes for the eclipse, hold the shoe box so that it lines up with its own shadow, demonstrating that it is aligned with light from the sun. Stand so that when you look through the viewing hole, you can see a tiny bead of light on the image screen; that’s the sun. During the eclipse, you’ll see the shadow of the moon pass in front of the sun.”

 

A map of the United States showing the path of totality for the August 21, 2017 total solar eclipse.

WHERE CAN YOU SEE THE SOLAR ECLIPSE? (SOURCE: NASA)

“You can see a partial eclipse, where the moon covers only a part of the sun, anywhere in North America (see “Who can see it?”). To see a total eclipse, where the moon fully covers the sun for a short few minutes, you must be in the path of totality. The path of totality is a relatively thin ribbon, around 70 miles wide, that will cross the U.S. from West to East.  The first point of contact will be at Lincoln Beach, Oregon at 9:05 a.m. PDT. Totality begins there at 10:16 a.m. PDT.  Over the next hour and a half, it will cross through Oregon, Idaho, Wyoming, Montana, Nebraska, Iowa, Kansas, Missouri, Illinois, Kentucky, Tennessee, Georgia, and North and South Carolina.  The total eclipse will end near Charleston, South Carolina at 2:48 p.m. EDT.  From there the lunar shadow leaves the United States at 4:09 EDT.  Its longest duration will be near Carbondale, Illinois, where the sun will be completely covered for two minutes and 40 seconds.”

Example of eclipse times for cities in the path of totality.

 WHAT IS IT? (SOURCE: NASA)
“This celestial event is a solar eclipse in which the moon passes between the sun and Earth and blocks all or part of the sun for up to about three hours, from beginning to end, as viewed from a given location.  For this eclipse, the longest period when the moon completely blocks the sun from any given location along the path will be about two minutes and 40 seconds.  The last time the contiguous U.S. saw a total eclipse was in 1979.”
Diagram showing the Earth-sun-moon geometry of a total solar eclipse.

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