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- Supralateral_arc abstract "A supralateral arc is a rare halo, an optical phenomenon often confused with the indeed infrequently appearing 46° halo. Distinguishing between the two is furthermore difficult as supralateral arcs typically only appears in fragments while the 46° halo is very faint.In contrast to the static 46° halo, the shape of a supralateral arc varies with the elevation of the sun. Before the sun reaches 15°, the bases of the arc touches the lateral (oriented sidewise) sides of the 46° halo. As the sun rises from 15° to 27°, the supralateral arc almost overlap the 46° halo, why most reported observations of the latter most likely are observations of the former. As the sun goes from 27° to 32°, the apex of the arc touches the circumzenithal arc centred around zenith (as do the 46° halo when the sun is located between 15° and 27°). In addition, the supralateral arc is always located above the parhelic circle (below is the infralateral arc) and is never perfectly circular.Arguably the best way of distinguishing the halo from the arc is to carefully study the difference in colour and brightness. The 46° halo is six times fainter than the 22° halo and generally white with a possible red inner edge. The supralateral arc, in contrast, can even be confused with the rainbow with clear blue and green strokes.Supralateral arcs form when sun light enters horizontally oriented, rod-shaped hexagonal ice crystals through a hexagonal base and exits through one of the prism sides. Supralateral arcs occur about once a year.".
- Supralateral_arc thumbnail Complex_halo_display_01-03-09.jpg?width=300.
- Supralateral_arc wikiPageExternalLink supinf.htm.
- Supralateral_arc wikiPageExternalLink www.paraselene.de?uk:113978.
- Supralateral_arc wikiPageExternalLink www.paraselene.de?uk:115550.
- Supralateral_arc wikiPageID "10696110".
- Supralateral_arc wikiPageRevisionID "597667522".
- Supralateral_arc hasPhotoCollection Supralateral_arc.
- Supralateral_arc subject Category:Atmospheric_optical_phenomena.
- Supralateral_arc type AtmosphericOpticalPhenomena.
- Supralateral_arc type NaturalPhenomenon111408559.
- Supralateral_arc type OpticalPhenomenon111490638.
- Supralateral_arc type Phenomenon100034213.
- Supralateral_arc type PhysicalEntity100001930.
- Supralateral_arc type PhysicalPhenomenon111419404.
- Supralateral_arc type Process100029677.
- Supralateral_arc comment "A supralateral arc is a rare halo, an optical phenomenon often confused with the indeed infrequently appearing 46° halo. Distinguishing between the two is furthermore difficult as supralateral arcs typically only appears in fragments while the 46° halo is very faint.In contrast to the static 46° halo, the shape of a supralateral arc varies with the elevation of the sun. Before the sun reaches 15°, the bases of the arc touches the lateral (oriented sidewise) sides of the 46° halo.".
- Supralateral_arc label "Supralateral arc".
- Supralateral_arc sameAs m.02qmj12.
- Supralateral_arc sameAs Q7644689.
- Supralateral_arc sameAs Q7644689.
- Supralateral_arc sameAs Supralateral_arc.
- Supralateral_arc wasDerivedFrom Supralateral_arc?oldid=597667522.
- Supralateral_arc depiction Complex_halo_display_01-03-09.jpg.
- Supralateral_arc isPrimaryTopicOf Supralateral_arc.
