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Unusual Solar Arc

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About this observation
Observer
Peter Tickner
Time of observation
18/02/2020 - 11:13
Object
Unusual reversed colour arc in a contrail above the Sun
Observing location
Urban Berkshire
Equipment
Apple iPhone 11 Pro Max
Tags

I was standing outside my observatory in the garden when I noticed this unusual effect high above the Sun apparently in a contrail.  It doesn't seem to match the common effects such as Sun Dogs or irridescence in clouds near the Sun.  The colours are reversed to a Circumhorizonal effect and above not below the Sun.  If it doesn't have a name for now I am calling it Tickner's Anticircumhorizonal arc!

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