Bright sun pillar observed at 2057 utc on 18 June 2019 from Keswick, Cumbria. Between 1500 utc and sunset (2051 utc) numerous optical phenomena appeared, including portions of 22° halo, mock suns, small segments of the parhelic circle, a circumzenithal arc and a sun pillar; at times the mock suns were exceptionally brilliant and brightly coloured, although at different times for both left and right displays. (© Stephen Burt.)image