December 2023 Solstice, 4:00 PM PST

The shadow of the gnomon of a polar sundial will track along a hyperbola throughout the day. On the December solstice, the gnomon tip will track along the white line all day; on the June
solstice, it will track a mirror image on the lower edge. This was taken 20 h 33m after the solstice. To see a 38 second time lapse video of the whole day, go to woodlandpolarsundial.com .