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♲ @gunsnrosesgirl3@twitter.com: Rainbows are actually... circles

The centre is directly opposite the position of the sun in the sky, this is called the antisolar point

A full circle is visible from a higher vantage point, usually a plane and is sometimes called a ‘glory’ ...but 1/

https://video.twimg.com/ext_tw_video/1442873105903456260/pu/vid/608x1080/QKldwZ1WrGhBKCv2.mp4?tag=12