Question: What are these bright red/blue/green patches/dots/lines? Why is this image totally GREEN?

by Portyankina scientist

Answer: The color images are combinations of 3 color filters, and their appearance is nowhere close to the realistic color. Usually they are stretched to highlight the interesting features best. This leads to some images being greener, others - redder. If you see just a green stripe or bright red dot or strikingly blue smudge - that likely means that there is data missing in the other filters. For example, sometimes you'll see half of the image being plain green - this means data from the red filter is missing. When whole image appears dark red - blue filter is missing. These are tiny technical glitches.

Posted January 9, 2013 10:36 PM

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