TERMIUM Plus®

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HALO 22 [1 record]

Record 1 2004-06-02

English

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

White, or mostly white, luminous ring of 22° radius with the luminary at its centre, showing a faint red fringe on the inside and, rarely, a violet fringe on the outside.

CONT

A small halo of 22 degrees (about the width of an outstretched hand at arm's length) is most common, while a large halo of 46 degrees is less frequently seen.

OBS

The portion of the sky inside the ring is conspicuously darker than the rest of the sky.

Key term(s)
  • halo of 22 degrees
  • 22 degree halo
  • 22° halo
  • small halo of 22°

French

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

Anneau lumineux, blanc ou en majeure partie blanc, de 22° de rayon et centré sur l'astre éclairant.

OBS

[Le petit halo] présente sur son bord intérieur une frange rouge peu visible et, dans quelques rares cas, une frange violette sur son bord extérieur. La partie du ciel située à l'intérieur de l'anneau est nettement plus sombre que le reste du ciel.

Spanish

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

Anillo luminoso, blanco o blanquecino, cuyo radio es de 22° concéntrico con la fuente luminosa.

OBS

El halo pequeño muestra en su interior una franja roja débil y en algunas ocasiones una franja violeta exterior. La región del cielo interior al anillo es notablemente más oscura que el resto del cielo.

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