artifical light pillars

[Timo Kuhmonen]

hello,

I post this observation here, some strange behaviour of artifical light pillars (observation by Marko Mikkilä). Waiting to see some explanation for this one...
http://www.taivaanvahti.fi/observations/show/20978

-Timo K.

[Timo Kuhmonen]

there is now some additional image sets of artifical light pillars:
http://www.taivaanvahti.fi/observations/show/20986
http://www.taivaanvahti.fi/observations/show/20982

And one observation of "cable halo" ini moonlight (by Jukka R.)
http://www.taivaanvahti.fi/observations/show/20988

Current explanation to phenomenon is that crystals somehow get a different orientation near powerline, due to existing electric field.