Sundog at sunset

Two days ago at sunset I spotted a sundog on the horizon. In the photograph above it is not the prominent bright spot in the middle of the grey cloud - that's a reflection. It's level with the Sun and one third of the way in from the right just above the hedge. There have been a lot of sundogs this year but with this one, it struck me that it seemed an awfully long way from the Sun, more so than usual. Celestial distances seem exaggerated close to the horizon. For example, the Moon seems much bigger when low over the horizon. So I measured the angle as shown below. Thumb to little finger is about 20 degrees. The sundog is always 22 degrees. Below the sundog is just past my little finger, so it's right.