Sometimes a sub-Kern arc "bleeds": it is accompanied by thin arcs below the brightest parts. The first case we photographed on the night of 6/7 January 2016 and second on 28/29 November 2016, both in Rovaniemi. Here is a third display with these arcs in Rovaniemi, photographed on the night of 4/5 January 2017. The lamp is somewhere between 5 and 10 degrees below the horizon. The temperature at this roadside field was -38 C, the lowest I experienced that winter. Earlier that night, at another location, I had photographed odd radius sub-plate arcs.
Below are three more photos from that location, taken before the the sub-Kern company arcs appeared.
Your super diamond dust halo pics never get old keep them coming buddy!
ReplyDeleteI am moving to Rovaniemi in a few days. However, I don't have a car, so I am not looking to chase much this winter. But some folks may be coming for a visit, so let's hope we can bag at least some of those Rovaniemi diamond dusts.
ReplyDeleteGet you one or get a dirt bike and make it street legal
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