|Winter Halo Expedition
Images by Jukka Ruoskanen taken on the ice of Lake Pielinen, Finland.
A group of avid halo observers spent nights last week in Koli National Park chasing halos.
The 180° wide view shows a lunar 22° halo, paraselenae, upper and lower tangent arcs and a paraselenic circle the lunar version of the parhelic circle. Near the horizon are fragments of a 46° halo. Artificial light pillars are at right. Diamond dust generated the halos.
All images ©Jukka Ruoskanen, shown with permission
|Sampling the halo making ice crystals. And in the sky, Orion the mighty hunter is dwarfed by the halos.