Optical Illusion?
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by pkronen
Hi, this seems to be an optical illusion or a an optical effect. But how was it created and by which instrument?
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by ElisabethB moderator
This is indeed an optical artifact. It is caused by a bright star just outside of this image.
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by Ashley_James
The star outside the image gives a green effect, which is seen on the edge. Often the green produces other colors in artifacts directly surrounding or overlapping the star.
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