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TANGENT ARC 46 DEGREE HALO [1 record]

Record 1 2005-07-25

English

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

tangent arcs to 46° halo: Luminous arcs similar to rainbow fragments symmetrically located with respect to the luminary (Sun or Moon) toward which they turn their convexity; when the large halo of 46° is visible, they are tangent to it at points symmetrically placed on the lower semi-circumference of the halo.

OBS

tangent arc to 46° halo: term frequently used in the plural (tangent arcs to 46° halo).

Key term(s)
  • tangent arcs to 46° halo
  • tangent arc to the 46 degree halo
  • 46° tangent arcs
  • 46° tangent arc
  • tangent arcs to the 46 degree halo
  • forty-six degree tangent arc
  • forty-six degree tangent arcs

French

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

arcs tangents au halo de 46°: Arcs lumineux semblables à des fragments d'arc-en-ciel, situés symétriquement par rapport à l'astre (Soleil ou Lune) vers lequel ils tournent leur convexité; lorsque le grand halo de 46° est visible, ils lui sont tangents en des points symétriques situés sur la demi-circonférence inférieure du halo.

OBS

arc tangent au halo de 46°: terme fréquemment utilisé au pluriel (arcs tangents au halo de 46°).

Key term(s)
  • arcs tangents au halo de 46°

Spanish

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

arcos tangentes al halo de 46°: Arcos luminosos, similares a fragmentos de un arco iris, colocados simétricamente con respecto a la fuente luminosa (el Sol o la Luna) hacia la que vuelven su convexidad. Cuando es visible el halo grande de 46°, los puntos de tangencia se hallan situados simétricamente en la semicircunferencia inferior del halo.

Key term(s)
  • arcos tangentes al halo de 46°
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