Second Glow -- Sometimes you can see a second glow in the clouds at sunset. (Maybe at sunrise too; I wouldn't know.) This timelapse was shot at a frame every 2 sec and played back at 30 fps, so there is a speed up of a factor of 60. At the start of this short video you can see a couple of Chinook helicopters crossing from left to right.
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/snowpeak/">John Fowler (away)</a>
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/snowpeak/36482402492/">Second Glow - Flickr</a>