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A simple theory of certain heliacal and anthelic halo arcs. The long hexagonal ice prism as a kaleidoscope
Author(s) -
Tricker R. A. R.
Publication year - 1973
Publication title -
quarterly journal of the royal meteorological society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.744
H-Index - 143
eISSN - 1477-870X
pISSN - 0035-9009
DOI - 10.1002/qj.49709942206
Subject(s) - kaleidoscope , halo , simple (philosophy) , hexagonal crystal system , prism , geology , arc (geometry) , hexagonal prism , astrophysics , physics , geometry , mathematics , optics , art , philosophy , visual arts , galaxy , chemistry , epistemology , crystallography
G. H. Liljequist and J. R. Blake have both recorded anthelic halo arcs on several occasions in Antarctica, with the sun at comparatively low elevations, which exclude on some occasions, and almost exclude on others, the mechanism put forward by Alfred Wegener to account for such arcs. A particularly complete display reported by J. R. Blake enables these arcs to be identified with those predicted by a very simple theory giver in the following paper, to which are added some remarks about the formation of an anthelion.