Subhelic arc

Noun

Definitions

1.NounA rare halo, formed by internal reflection through ice crystals, that curves upwards from the horizon and touches the tricker arc above the anthelic point.

Synonyms

parhelic circle parhelion circumhorizontal arc parhelium paranthelion halo paraselene heliotail arclet antitruncation antarctic convergence near-rectilinear halo orbit

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