The first supernumerary is quite obvious near the top of this bow but fades out lower down.
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A second supernumerary is just visible here, the purple and green bands tend to dominate.
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Viewed against a blue sky the first supernumerary isn't so obvious.
Also notice the difference in background where there is reflected light inside the primary bow compared to the sky outside the bow.
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Viewed against a darker cloud background the green in the supernumerary is more obvious.
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