Tuesday, 2 February 2016

Iridescent clouds: a rare phenomenon!

Around dawn this morning (during a futile search for Mercury!) I was treated to the rare sight of cloud iridescence. Not to be confused with sun dogs or rainbows, this is a phenomenon that is only very infrequently witnessed: here's a Wiki link:


The Moon was pretty impressive, too, with several spectacular craters on or near the terminator.

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