I found this diamond-shaped cloud after taking a series of photos of two lightships merging, over a period of 1-3/4 hours.  I didn’t see it while photographing, but in looking closer at the pictures, you can bet I was surprised to discover this diamond!

Here is a post about it, including the full photograph, here:  Diamond in the Sky

You can see a flipbook of the series here:  Solaris Lightship Story

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