Home
  OpticsPOD
  What's New 
  Rays & Shadows
  Water Droplets
  Rainbows
  Ice Halos
    Contents
    Crystals
    Frequent Halos
    Infrequent Halos
      Why infrequent?
      46° Halo 
      Supra/infralateral
      Parry Arcs
        Images
        1  2  3  4 
      Lowitz Arcs
      Moilanen Arc
      Kern Arc
      120° Parhelia
      44° Parhelia
      Subhorizon Arcs
      Pyramidal
    Multiple Displays
    Other Worlds
    Observing Halos
    HaloSim
  High Atmosphere
  Links & Resources
  Search - Index






 
123456789012345678


   Parry Arc III 









Parry and upper tangent arcs at low sun. Captured by Gerd Pfeiffer at Konz, Germany on 8th April at 19.50 CEST, sun elevation 3.5°.

Parry arcs change dramatically in appearance as the sun elevation changes. Here the sunvex Parry arc, the uppermost arc, closely resembles the tangent arc just beneath it giving the appearance of a double halo.

Image İGerd Pfeiffer, used with permission.