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Old 17-02-2019, 06:48 PM
astro744
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Join Date: Apr 2007
Posts: 1,244
Quote:
Originally Posted by Tropo-Bob View Post
The first image was looking at the Western Horizon after sunset. The second image was looking the Eastern Horizon, only a few moments later. The orange/pink ray went all the way from the Western to the Eastern Horizon, although it lost its intensity along the way. I have never seen a ray before that goes totally across the sky.
OK that makes more sense. The western rays are crepuscular radiating upwards as the sun was just below the horizon. Crepuscular can also radiate downwards if the Sun is behind clouds but still above the horizon. The eastern ray is anti-crepuscular. It is not uncommon to see skywide rays although it is also not that common. I have seen them a few times and wish I had an all sky camera to capture them. Good spotting!

See https://www.atoptics.co.uk/atoptics/skywide.htm
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