Beautiful, beautiful autumn. Every year it has me falling in love with
nature all over again, and once more I find myself being newly inspired
by it’s astounding brilliance of colors.
The top picture is a “timestack” of 5 photos, hence the star trails. You can also see an (albeit admittedly closer) airplane trail across the middle of that stack.
The second photo is a zoom crop of the object and incident in question, from the top photo stack. It was only visible for four 30-second exposures before completely disappearing.
The arch of light occurred during the first of the four ‘visible’ photos, shown in the third (bottom) picture. So, it did not occur during the direction change.
Kihaku-Gato's Garden Blog (tumblr import) 