Arc of Lowitz

or Lo·witz arc

[ loh-vits ]
/ ˈloʊ vɪts /

noun Meteorology.

a halo or arc of light, occurring infrequently, which extends diagonally downward from a 22° parhelion.

Origin of Arc of Lowitz

named after Tobias Lowitz (1757-1804), German-born chemist, who published a description of a halo display observed in St. Petersburg in 1790