WASHINGTON — The solar eclipse coming Aug. 21 is not a national holiday, so people who have only a few minutes to pop outside to check it out can learn precisely the best moment to observe maximum coverage for their exact address.
Zoom in on NASA’s interactive map, click on a spot to create a marker and a data balloon reveals the exact moments when the eclipse will begin, when it will be at maximum coverage and when it will end.
“Alt” on the graph represents the altitude in degrees for the height of the sun above the horizon. 45 degrees is halfway between the horizon and straight up, while 90 degrees is directly overhead.
For the time of day listed, subtract four hours to get Eastern Daylight Time.