This page provides information about the most important types of halos and their formation. The identifiers (EE) correspond to the
halo key of the AKM. There are other types of halos not listed here, whose formation either cannot yet be fully explained or there are only a few observations.
A list of all important types of halos can
be viewed and downloaded here .
The following overview leads to the halo types that have already been observed in the AKM halo observer network in Central Europe.
Just click on one of the images!

EE01 - 22°-Ring

EE02/03 - Parhelia

EE05 - Upper Contact Arc

EE06 - Lower Contact Arc

EE07 - Described Halo

EE08 - Upper Light Column

EE09 - Lower Light Column

EE11 - Circumzenithal Arc

EE12 - 46° Ring

EE13 - Horizontal Circle

EE14/15 - Lowitz Arcs

EE17 - Counter-sun

EE18/19 - 120° Parhelia

EE21 - Supralateral arch

EE22 - Infralateral Arc

EE23 - Circumhorizontal Arc

EE27 - Parry Arch

EE31 - 9°-Ring

EE32 - 18° Ring

EE33 - 20°-Ring

EE34 - 23° Ring

EE35 - 24°-Ring

EE36 - 35°-Ring

EE37 - Elliptical Rings

EE38 - Bottlinger's Rings

EE40 - Subhorizon Circle

EE44 - Subsun

EE45/46 - Subsun

EE52 - 46° Contact Arcs

EE56 - Wegener's Counter-Sun Arch

EE57 - Tricker's Antisolar Arc

EE58 - Hastings Counter-sun Arc

EE60 - Tapes Arcs

EE61 - Sunbow

EE62 - Subsun Arc

EE63 - Subparhelic Bow

EE66 - 9° parry-shaped bows

EE67 - 18°-Lateral Arcs

EE69 - 23° parhelic Arcs

EE70 - 24°-Lateral Bends

EE77 - Moilanen arc

EE99 - Unexplained Halo Types