The app currently renders a circular "shadow" for the region of visible total eclipse over the course of the event. It is, however, innaccurate as the region "stretches" (that is, it is elliptical with increasing eccentricity) as a function of the sun's phase angle. It's not yet certain this can be achieved accurately with the current NASA data set.
The app currently renders a circular "shadow" for the region of visible total eclipse over the course of the event. It is, however, innaccurate as the region "stretches" (that is, it is elliptical with increasing eccentricity) as a function of the sun's phase angle. It's not yet certain this can be achieved accurately with the current NASA data set.