On August 21, 2017, the moon will pass between Earth and the sun in a total solar eclipse that will be visible on a path from Oregon to South Carolina across the continental United States. This path of totality will occur in a little over 90 minutes, while observers on the ground will see the eclipse for about two and a half minutes. Standing at the edge of the moon's shadow, or umbra, the difference between seeing a total eclipse and a partial eclipse comes down to elevation - mountains and valleys both on Earth and on the moon - which affect where the shadow lands. In this visualization, data from NASA's Lunar Reconnaissance Orbiter account for the moon's terrain that creates a jagged edge on its shadow. This data is then combined with elevation data on Earth as well as information on the sun angle to create the most accurate map of the eclipse path to date. Watch the video to learn more.
When I was little, I had an astronomy book that gave dates for eclipses way into the future. I remember figuring which ones I'd be alive for and where I'd have to be.I remember this one! But won't make it, sadly.
"Since we are exactly one solar rotation away from the solar eclipse, we're able to use today's observations to predict the structure of the corona on Aug. 21st" says Petrie. "The corona is not likely to change too much between now and the eclipse, unless we get lucky and a large active region appears! We expect to see faint, straight structures protruding from the north and south poles of the Sun - these are the polar plumes. We will be able to see brighter bulbs of material closer to the equator - these are called helmet streamers."
Central Florida nearing maximum ~85%. You can tell the dimming of the sunlight for the last 15-20 minutes.