TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 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.  2, record 1, English, - tangent%20arc%20to%2046%C2%B0%20halo

Record number: 1, Textual support number: 1 OBS

tangent arc to 46° halo : term frequently used in the plural(tangent arcs to 46° halo).  3, record 1, English, - tangent%20arc%20to%2046%C2%B0%20halo

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 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.  2, record 1, French, - arc%20tangent%20au%20halo%20de%2046%C2%B0

Record number: 1, Textual support number: 1 OBS

arc tangent au halo de 46°: terme fréquemment utilisé au pluriel (arcs tangents au halo de 46°).  3, record 1, French, - arc%20tangent%20au%20halo%20de%2046%C2%B0

Record 1,  Textual support,  Spanish

Record number: 1, Textual support number: 1 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.  1, record 1, Spanish, - arco%20tangente%20al%20halo%20de%2046%C2%B0

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 DEF

A halo phenomenon consisting of a coloured arc, red on its upper margin; it extends for about 90° parallel to the horizon and lies about 46° below the Sun [or Moon].  2, record 2, English, - circumhorizontal%20arc

Record number: 2, Textual support number: 1 OBS

It is produced by the refraction of light through the 90° prisms of ice crystals, having entered through the vertical sides and passing out through the horizontal bases. Normally, the crystals are large, oriented, hexagonal plates. The circumhorizontal arc is the low sky counterpart of circumzenithal arc. The circumhorizontal arc is low in the sky when the sun is high (above 58° elevation); the circumzenithal arc is high in the sky when the sun is low (below 32° elevation). The most colorful circumhorizontal arcs occur when the refraction is close to the minimum angle of deviation, and this corresponds to a solar elevation angle of about 68°. In the midlatitudes, the sun only climbs to that elevation for a few hours mid day around the summer solstice.  3, record 2, English, - circumhorizontal%20arc

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 DEF

Phénomène de halo consistant en un arc coloré, rouge à son extrémité supérieure; il s'étend sur environ 90° parallèlement à l'horizon, à 46° au-dessous du Soleil.  2, record 2, French, - arc%20circumhorizontal

Record number: 2, Textual support number: 1 CONT

Quand le Soleil est assez haut dans le ciel (de 32° à 90° de hauteur de l'horizon) un arc circumhorizontal peut être visible sous le Soleil près de l'horizon lors de passage de cirrus. Ces arcs ont la forme inverse à l'arc circumzénithal, sont assez grands et sont produits par les cristaux plats. Ces arcs sont parmi les moins visibles. [...] Plus on est en basse latitude plus on a la chance de [les] voir [...] Ils ne peuvent pas être visibles quand on monte au-delà de 55° de latitude [...] Vers le nord de la France ou en Allemagne à 50° de latitude, l'arc circumhorizontal n'est visible qu'une fois en été [...] C'est un des [...] arcs à ne pas être visible partout sur Terre.  3, record 2, French, - arc%20circumhorizontal

Record 2,  Textual support,  Spanish

Record number: 2, Textual support number: 1 DEF

Halo que consta de un arco coloreado con el rojo en su lado superior. Este arco se extiende alrededor de 90° paralelo al horizonte en una altura de aproximadamente 46° por debajo del Sol.  1, record 2, Spanish, - arco%20circumhorizontal

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 DEF

An arc of light tangent to a halo. It forms by refraction of light through ice crystals.  2, record 3, English, - tangent%20arc

Record number: 3, Textual support number: 1 CONT

A tangent arc is a patch of bright light that is occasionally observed along a halo. This occurs when sunlight is refracted by falling hexagonal "pencil-shaped" ice crystals whose long axes are oriented horizontally.  3, record 3, English, - tangent%20arc

Record number: 3, Textual support number: 2 CONT

tangent arcs. ... The most common of these are the upper and lower tangent arcs to the halo of 22°. They form separate arcs when the sun is low, but as the sun climbs they join to produce the circumscribed halo. These arcs are explained by refraction through the 60° prism sides of columnar crystals oriented with their long axes horizontal.  4, record 3, English, - tangent%20arc

Record number: 3, Textual support number: 1 PHR

tangent arc to 22° halo, to 46° halo.  5, record 3, English, - tangent%20arc

Record number: 3, Textual support number: 2 PHR

22° upper, 22° lower, lower, upper tangent arc.  5, record 3, English, - tangent%20arc

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 CONT

On répertorie également dans les halos de nombreux phénomènes optiques plus rares. [...] Les arcs tangents sont de courts arcs lumineux partant soit de la base ou du sommet du petit halo, soit (en un couple symétrique) de la demi-circonférence inférieure du grand halo.  1, record 3, French, - arc%20tangent

Record number: 3, Textual support number: 1 PHR

Arc tangent au halo de 22°, au halo de 46°; inférieur, supérieur.  2, record 3, French, - arc%20tangent

Record 3,  Textual support,  Spanish

Record number: 3, Textual support number: 1 PHR

Arco tangente al halo de 22°, al halo de 46°, superior.  1, record 3, Spanish, - arco%20tangente

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 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.  3, record 4, English, - small%20halo

Record number: 4, Textual support number: 1 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.  2, record 4, English, - small%20halo

Record number: 4, Textual support number: 1 OBS

The portion of the sky inside the ring is conspicuously darker than the rest of the sky.  3, record 4, English, - small%20halo

Record 4,  Textual support,  French

Record number: 4, Textual support number: 1 DEF

Anneau lumineux, blanc ou en majeure partie blanc, de 22° de rayon et centré sur l'astre éclairant.  2, record 4, French, - petit%20halo

Record number: 4, Textual support number: 1 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.  2, record 4, French, - petit%20halo

Record 4,  Textual support,  Spanish

Record number: 4, Textual support number: 1 DEF

Anillo luminoso, blanco o blanquecino, cuyo radio es de 22° concéntrico con la fuente luminosa.  1, record 4, Spanish, - halo%20peque%C3%B1o

Record number: 4, Textual support number: 1 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.  1, record 4, Spanish, - halo%20peque%C3%B1o

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 DEF

Photometeor of the halo family, consisting of two luminous iridescent spots appearing on the parhelic circle, to the right and left of the Sun and at the same height, close to the large halo.  2, record 5, English, - parhelia%20associated%20with%20the%2046%C2%B0%20halo

Record 5,  Textual support,  French

Record number: 5, Textual support number: 1 DEF

Photométéore de la famille des halos consistant en deux taches lumineuses irisées apparaissant sur le cercle parhélique, à droite et à gauche du Soleil et à la même hauteur que l'astre, à proximité du grand halo.  2, record 5, French, - parh%C3%A9lie%20de%2046%C2%B0

Record 5,  Textual support,  Spanish

Record number: 5, Textual support number: 1 DEF

Fotometeoro de la familia de los halos formado por dos manchas luminosas irisadas que aparecen sobre un círculo parhélico, cercano al halo grande, a la derecha y a la izquierda del Sol y a la misma altura.  1, record 5, Spanish, - parhelio%20asociado%20con%20halo%20de%2046%C2%B0

Record 6,  Textual support,  English

Record number: 6, Textual support number: 1 DEF

Circular halo, with radius of 46°, much less common and always less bright than the small halo. It comprises a faintly luminous ring centred on the Sun or Moon.  1, record 6, English, - large%20halo

Record number: 6, Textual support number: 1 OBS

Haloes are caused by reflection and refraction of light frm the sun or moon by ice crystals in the atmosphere. They may take the form of rings, arcs, pillars or bright spots. The type of halo formed can give information about the type of ice crystals present. Haloes may also be seen in midlatitudes and are normally formed by high, thin clouds.  5, record 6, English, - large%20halo

Record 6,  Textual support,  French

Record number: 6, Textual support number: 1 DEF

Halo beaucoup moins fréquent que le petit halo et toujours moins lumineux que lui; il est constitué par un anneau faiblement lumineux centré sur le Soleil ou sur la Lune, ayant un rayon apparent égal à 46°.  2, record 6, French, - grand%20halo

Record 6,  Textual support,  Spanish

Record number: 6, Textual support number: 1 DEF

Halo circular de 46° de radio, mucho menos frecuente y siempre menos luminoso que el halo pequeño. Está formado por un anillo de débil luminosidad de un radio aparente de 46° concéntrico con el Sol o la Luna.  1, record 6, Spanish, - halo%20grande