A solar phenomenon known as a sundog arcs over the tundra in Churchill, Manitoba, Canada.

/ 太阳“假”天文现象半悬于加拿大Manitoba丘吉尔苔原天际。

Analogous to a sundog or parhelion, the paraselene is produced by moonlight shining through thin, hexagonal-shaped ice crystals in high cirrus clouds.

一样，在高空卷云中，月光通过稀薄、具有六边状冰晶时产生了幻月。