Anticrepuscular (Antisolar) Rays

Seen by Tom Klimek in the desert in Imperial County, California.

They show that the rays - better called antisolar rays - can be seen even when the sun is comparatively high.

©Tom Klimek, shown with permission
Instead of dark tubes of shadow extending from clouds, imagine a series of solid parallel rods all tilted downwards. Perspective plays the same tricks on them.

The rectangles ABCD and EFGH have identical widths.
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