One more phenomenon due to refraction and reflection of light - now in water drops. Center of rainbow is in the line connecting sun and observer; the lower the sun the higher (and more complete) rainbow. When sun is very close to horizon, only red light can penetrate atmosphere and we see a red (and "full") rainbow in the opposite sky. If there is a second bow, notice how the order of colours is inverted (there is one more reflection involved). Notice also the darker band between the primary and secondary bows - so called Alexander's belt. And occasionally there are interference bows visible beneath and close to the primary bow. Images ss00111 and ss00124 show a fogbow; in fog cloud drops are so small that colours are mixed summing up white light. Image sk01711 is photographed in moonlight. It is my ever first sighting of this phenomenon (Sep 2001). Upper right corner has turqoise colour due to aurora.
ss00111
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ss00114
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ss00124
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ss00154
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ss00223
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ss00232
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sk00223
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sk00111
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sk00121
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sk00252
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sk00631
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sk00343
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sk00334
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sk00413
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sk00432
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sk00522
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sk00621
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sk00744
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sk00751
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sk00833
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sk00713
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sk00853
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sk00843
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sk01053
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sk01251
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sk01052
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sk01212
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sk01234
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sk01334
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sk01354
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sk01441
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sk01521
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sk01534
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sk01553
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sk01613
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sk01631
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sk01711
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sk01721
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sk01731
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sk01832
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sk01933
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sk01951
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sk02034
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sk02043
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sk02052
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spu0133
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spu0143
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spu0231
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spu0234
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spu0244
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spu0252
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spu0313
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spu0322
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spu0331
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spu0341
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spu0323
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spu0352
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spu0411
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spu0422
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spu0533
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spu0542
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spu0442
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spu0451
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spu0454
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spu0544
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spu0713
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spu0842
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spu0913
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spu1054
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spu1122
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spu0942
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