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    Re: (Fwd) The Most Anomalous Refraction Yet or What ?
    From: George Huxtable
    Date: 2009 Aug 4, 18:27 +0100

    I agree with Brad; the picture was taken through double glazing. Nothing to
    do with refraction or Sun-dogs. It's a pity that nowhere was it stated
    whether the picture was taken from indoors, or not.
    
    It produces a displacement of images rather like you would get with a Bris
    sextant. I can see four Sun discs, rather than three.
    
    And it's rather poor double-glazing, at that. Looking at the other pictures
    provided, the image displacement changes, presumably as the
    out-of-parallel-ism between the two glass sheets alters when looking through
    different areas of the glass window; perhaps due to pressure-differences
    causing bulging. I suspect that there's also a degree of out-of-parallel-ism
    between the two surfaces of each sheet, producing additional prismatic
    displacement of reflections.
    
    However, the picture does show a bit of interesting atmospheric disturbance,
    in that there's an inversion occurs within the lowest few minutes near the
    horizon, causing the main, highly overexposed, Sun disc to flare out at its
    lower limb, just where it touches the horizon.
    
    George.
    
    contact George Huxtable, at  george{at}hux.me.uk
    or at +44 1865 820222 (from UK, 01865 820222)
    or at 1 Sandy Lane, Southmoor, Abingdon, Oxon OX13 5HX, UK.
    ----- Original Message -----
    From: "Brad Morris" 
    To: 
    Sent: Tuesday, August 04, 2009 4:37 PM
    Subject: [NavList 9326] Re: (Fwd) The Most Anomalous Refraction Yet or What
    ?
    
    
    
    Hi Frank
    
    Based upon the consensus opinion on your linked page, the photograph was
    through multiple panes of glass, causing reflections.
    
    If that is true, then the navigator would be un-wise to take an amplitude of
    the sun through panes of glass.
    
    Best Regards
    Brad
    
    
    -----Original Message-----
    From: NavList@fer3.com [mailto:NavList@fer3.com] On Behalf
    Of FJones
    Sent: Tuesday, August 04, 2009 11:23 AM
    To: navList
    Subject: [NavList 9325] (Fwd) The Most Anomalous Refraction Yet or What ?
    
    My sincerest apologies to the Navlist group.  I became distracted and forgot
    to give you the 'rest of the story'.  Please take a look at the following
    URL for details, <>.  This
    is definitely not from the rather common sun-dog phenomena we may see
    several times annually.  There appear to be the normal vertical component
    and goofy, multiple horizontal components as well.
    
    I thank George H. for keeping me on the straight.
    
    Frank J.
    Rochester, NY
    
    
    
    
    ------- Forwarded message follows -------
    From:                   FJones 
    To:                     navList 
    Subject:                The Most Anomalous Refraction Yet  or What ?
    Date sent:              Tue, 04 Aug 2009 09:25:59 -0400
    
    Some of you will certainly find this three sun photograph interesting.
    Anyone want to describe the atmospheric model for this and share it with the
    world?  How trustworthy would this situation be for an amplitude
    measurement?
    
    Regards,
    Frank J.
    Rochester, NY
    ------- End of forwarded message -------
    
    
    
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