Het antwoord van Les Cowley:
Hello Harry,
You have a 46° halo OR a supralateral arc.
It is often very difficult to distinguish between these two halos. See:
http://www.atoptics.co.uk/halo/46orsup.htm
Both arcs are rare - Congratulations!
Kind regards,
Les
Les Cowley
Ook deze foto, even iets aangedikt, had ik meegezonden.
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