Dreariest circumhorizon arc ever

Dreariest circumhorizon arc ever.

Dreariest circumhorizon arc ever. I could barely see any colors in the cloud at all without my polarized sunglasses, and when I took a photo through them, I *still* had to bump up the saturation.

I’ve seen several of these over the years. The brightest one was 9 years ago:

https://hyperborea.org/journal/2010/05/feathery-not-a-rainbow-cloud/

The longest was just last year:

https://hyperborea.org/journal/2018/05/double-solar-halo/

#AtmosphericOptics #CircumhorizonArc #rainbow #sky #halo

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