Switched to the Japanese page just for fun, to see what this is called.<p>Sigh, yet another homonym: 幻日(genjitsu).<p>If you try say this in Japan, nobody will know what you're talking about because "genjitsu" (現実) is an extremely common word that means "reality".
Sun dogs play a small role in the excellent alternative history / horror series “The Terror”, starring two of my favorite character actors Jared Harris and Ciarán Hinds, about the loss of the 1845 Franklin expedition to the Arctic. Thoroughly recommended!