Sky-Wide Shadows & Rays imaged by Tom Martinez at a star party near Marion, Kansas. ©Tom Martinez, shown with permission.

By an odd coincidence Tom took fish-eye images of sky-wide rays on two successive years at the same gathering (earlier rays).

Clouds in the west have cast the shadows. They are parallel tubes of dark air but appear by perspective to converge on the position of the sun and on the antisolar point in the sky opposite . The sunward rays are called crepuscular and those opposite are anticrepuscular.

Another shadow is starting to rise in the east (right), this is the shadow cast by the earth itself into our atmosphere.


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