Subhelic arc
id:
subhelic-arc-306-12168010
title:
Subhelic arc
text:
A subhelic arc is a rare halo, formed by internal reflection through ice crystals, that curves upwards from the horizon and touches the tricker arc above the anthelic point. Subhelic arcs result from ray entrance and exit through prism end faces with two intermediate internal reflections.
brand slug:
wiki
category slug:
encyclopedia
description:
Rare halo
original url:
https://en.wikipedia.org/wiki/Subhelic_arc
date created:
date modified:
2023-07-12T21:59:12Z
main entity:
{"identifier":"Q7631270","url":"https://www.wikidata.org/entity/Q7631270"}
image:
fields total:
13
integrity:
14