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Circumzenithal arc

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  • 02-02-2016 9:59am
    #1
    smacl
    Moderators, Society & Culture Moderators Posts: 15,716 Mod ✭✭✭✭


    or upside down rainbow even, above my house this morning;

    ur.JPG


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    #2
    Captain Chaos
    Registered Users Posts: 11,174 ✭✭✭✭Captain Chaos


    I saw that from the Luas this morning, never saw anything like it before. I thought it was part of an aurora but there was no mention of any solar flares lately.


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    #3
    jfSDAS
    Registered Users Posts: 352 ✭✭jfSDAS


    Hi smacl,

    Great picture!

    The image shows nacreous clouds (also called Polar Stratospheric Clouds) which we have been lucky to see the last couple of mornings. Best explanation I can post is that from Les Cowley's atmospheric optics site ... links are below:

    http://www.atoptics.co.uk/highsky/nacr1.htm

    http://www.atoptics.co.uk/highsky/psc1.htm

    http://www.spaceweather.com/ also has info on them and a link to a gallery of images from observers this week.

    Congratulations on seeing them. We may see the clouds again tomorrow morning and you should look anytime from say 7am onwards.

    John


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    #4
    NamelessPhil
    Registered Users Posts: 1,098 ✭✭✭NamelessPhil


    Yes, I saw those on Monday and Tuesday mornings on the walk to school. They were more visible this morning. I described them to my daughter as being like frozen rainbows.


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    #5
    littlema
    Registered Users Posts: 246 ✭✭littlema


    http://imgur.com/a/ccPBx

    Sorry to answer to your beautiful picture with this, but I tried to "copy" as before and failed miserably. :(


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