TERMIUM Plus®

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ANNEAU ANTHELIE [1 record]

Record 1 2005-07-20

English

Subject field(s)
  • Atmospheric, Climatic and Meteorological Phenomena
DEF

A group of halos, each of which passes through the anthelion.

OBS

Four mechanisms have been proposed for producing arcs of various shapes that nevertheless pass through the anthelion. Each of the four predicted shapes has been documented photographically. Each mechanism involves refraction and internal reflection in columnar ice crystals, but they differ in the particular crystal faces involved.

OBS

anthelion: Pure white, rounded spot, at times irridescent or surrounded by coloured rings or arcs, which appears very rarely opposite the Sun and at the same height above the horizon.

Key term(s)
  • anthelic arc

French

Domaine(s)
  • Phénomènes météorologiques, climatiques et atmosphériques
DEF

Anneaux ou arcs colorés apparaissant quelquefois à l'opposé du soleil.

OBS

anthélie : Apparence lumineuse qui se manifeste à l'opposé du soleil et à la même hauteur que cet astre. Cette tache arrondie est ordinairement d'un blanc pur, plus rarement irisée ou entourée d'anneaux colorés. Elle est parfois traversée par des arcs obliques blancs qui peuvent se prolonger jusqu'à la région du Soleil où ils se rencontrent. Phénomène très rare, d'explication incertaine.

Key term(s)
  • arc d'anthélie
  • anneau d'anthélie

Spanish

Campo(s) temático(s)
  • Fenómenos meteorológicos, climáticos y atmosféricos
OBS

anthelio: Mancha redondeada de un color blanco puro, pero a veces irisada o rodeada de arcos o anillos coloreados, que aparece en muy raras ocasiones en una dirección opuesta a la del Sol, pero a su misma altura sobre el horizonte.

Key term(s)
  • arco anthélico
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