I caught these primary and secondary rainbow arcs late one afternoon a couple of weeks ago. They are the left and right ends of the same rainbow which never showed as a complete bow. The secondaries are fainter and shorter but visible farther out from the primaries. They are about twice as wide as the primaries and have the order of the colors reversed. Secondaries are not uncommon but there are higher order rainbows (3rd, 4th, 5th, etc.) that are more unusual. So far, I haven’t seen any of higher order but I intend to keep my eyes open…
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