Scattering of light on objects

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philsmiley
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what is happening when you look at an object up close in sunlight and see a spectrum of different colors that appear as "dots"? I noticed this happens with most objects and the "dots" seem to change colors with different angles of incidence. can someone please explain what is going on?
 

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And another question in the same context of this thread:
Has the light of moon a spectral line and is there any red shift?
 

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