secondary bow

secondary bow

[′sek·ən‚der·ē ′bō]
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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The Met Office says: "This means the sequence of colours is inverted compared to the primary rainbow, with the secondary bow appearing about 10 degrees above the primary bow."
This is not the common double rainbow, in which the primary bow is accompanied by a higher, wider, paler secondary bow caused by light reflected twice within each raindrop.
This particular fogbow had supernumerary bows close by and a rare secondary bow farther out.
But the order of colors in the secondary bow is reversed: red is lowest and violet is on top.