The moon has a strange aura tonight

I went out for a pleasant walk under the moonlight and I couldn't help noticing this phenomenon: the moon was surrounded by a strange round circle, like an aura, and with all my physics education I couldn't come up with a plausible explanation.

Qualcuno ha idea della natura dell'alone? Non è stato facile scattare questa foto: ho dovuto fare molti tentativi perché con una lunga esposizione la luminosissima luna tendeva ad oscurare l'alone. Alla fine ho usato ISO100 e 8 secondi di esposizione; poi ho trattato l'immagine con tecnica HDR (che oramai padroneggio), fliltro NeatImage (per il rumore), conversione in bianco e nero (dando risalto ai colori gialli) e ricolorizzazione dell'immagine con un colore ciano che fa molto cielo notturno, tutto per esaltare al massimo l'alone.
Se qualcuno avesse idea di come fare a risaltare ulteriormente questo alone mi faccia un fischio

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Comments

z.patrizia says:

bellissima !!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Posted 23 months ago. ( permalink )

Pier/ says:

Spettacolare questa foto, bravissimo.
Posted 23 months ago. ( permalink )

MoodyGoat says:

Maybe it was there just for you to take a picture of! Very nice shot. It's impressive that you could capture the whole ring in the dark without it washing out.
Posted 23 months ago. ( permalink )

-Chad Johnson says:

Beautifully captured!

--
Seen on your photo stream. (?)
Posted 22 months ago. ( permalink )

cherik.2008 says:

I'm from Florida and saw a very similar moon last night...8/18/08. Has anyone determined the cause of this aura??? Beautiful picture.
Posted 16 months ago. ( permalink )

skandy-pictures says:

Not really. My best guess is that it has to do with an invisible cloud of humidity which behaves like a lens
Posted 16 months ago. ( permalink )

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Taken with a Canon PowerShot G7.
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Taken on January 21, 2008
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