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Jarmo Moilanen schrieb:
> Hi Claudia,
>
> Congratulations for the photographer!
>
> That's one of the best photographed cases I have seen so far. This
V-shape
> arc at half way between 22° upper tangent arc and the sun is strange (we
> don't know what kind of ice crystal is producing it), but it is not
> extremely rare halo. I can remember at least 7 other very good
photographed
> cases. All (except one possible upper cloud case) have been seen in low
> level diamond dust displays. This Switzerland display is very similar
than
> the Viitasaari display 8 January 1999 here in Finland. In Viitasaari
display
> there was also Parry and heliac arc with very well defined Moilanen arc.
On the original photos is also to seen the Parry and the heliac arc.
I hope that we'll get somtimes a idea for theory of Moilanen arc.
Best regards
Claudia
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________________________________________________________________________
Claudia & Wolfgang Hinz
Private Homepage: http://besu.ch/hinz
Homepage Atmosphaerische Erscheinungen: http://www.meteoros.de
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