Solar small 22 ° halo (1) *, two parhelia or false suns (2,3), Lovitz arcs ** (4 - the first Lovitsa arc, 5 - the second Lovitsa arc), a pargelic circle (6), upper tangent arc 22 ° halo (7), Parry arc (8) in the sky over the South Pole of the Earth and the South Polar Microwave Telescope *** - the southernmost on the planet.
* represents the angular distance from the Sun / Moon. When the light beam is refracted and decomposed into a spectrum (dispersion) in vertically oriented ice crystals around the Sun / Moon, a 60 ° deflection of the light beam occurs, as a result of which an iridescent color appears with an angular distance for red color 21 ° 34 ', for violet color 22 ° 22 '.
** look like arcs on parhelia, lying slightly away from the small 22 ° halo and facing inward.
*** there is a crystal clear atmosphere and no dustiness, and severe frost causes a low concentration of water vapor, which can absorb microwave signals from space. In addition, the Sun does not create microwave interference in polar night conditions.