Upper Tangent Arc on January 9th, 2005
Upper tangent arc on January 9th, 2005. Canon Powershot G6, processed with Adobe Photoshop Elements. The tangent arc lasted only for a few minutes, the other halos of January 9th were rather faint (a circumzenithal arc, parhelia, a 22° halo and possibly a fragment of a 46° halo).
