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Hi Claudia & Wolfgang,
That's an awsome observation! Unless I am missing some recent observations
(it's very much possible) this is definitely the best elliptical halo case
where the _subhorizon_ part is documented so well, and clearly arises in
the very same crystal population as the ellipse itself (individual
crystals visible both subhorizon and in the ellipse). What comes to my
mind immediately is that you didn't mention nor I can see it in your
pictures, namely the Bottlinger's rings. Did you see any hints of these? I
cannot easily work out an explanation for the lack of Bottlingers when
ellipses appear, based on the crystals we have worked with. Also the very
low intensity of the subsun in the first picture is striking. The subsun
seems to be much brighter in the last picture, but I cannot see if the
ellipse was present in the last picture. Was the subsun somehow correlated
in time with the ellipse?
Cheers,
Mika Sillanpää
Boulder
On Mon, 13 Mar 2006, Hinz wrote:
> Hello,
>
> today in the morning (13th of march 2006) I've observed on the mountain
> Wendelstein (1835m, Germany, Bavarian Alps) a very nice and bright upper sun
> pillar with subsun and later two very clear elliptical haloes in diamond
> dust. The air temperature was -17°C and the huminity 82%.
>
> First I thought it's a dream, but it was the reality ....
>
> Here some pictures:
> http://www.glorie.de/sonstiges/ellip.jpg
> http://www.glorie.de/sonstiges/ellip1.jpg
> http://www.glorie.de/sonstiges/subsun.jpg
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