- AKM e.V.
- Subjects
- Halos
- Kinds of halos
- 22° halo (EE01)
- Parhelia / Sundogs (EE02/03)
- Upper tangent arc (EE05)
- Lower tangent arc (EE06)
- Circumscribed Halo (EE07)
- Upper light pillar (EE08)
- Lower light pillar (EE09)
- Circumzenithal Arc (EE11)
- 46° halo (EE12)
- Parhelic circle (EE13)
- Lowitz arcs (EE14/15)
- Anthelion (EE17)
- 120° parhelia (EE18/19)
- Supralateral Arc (EE21)
- Infralateral arc (EE22)
- Circumhorizontal arc (EE23)
- Parry arc (EE27)
- Liljequist parhelia (EE28)
- 9° halo (EE31)
- 18° halo (EE32)
- 20° halo (EE33)
- 23° halo (EE34)
- 24° halo (EE35)
- 35° halo (EE36)
- Elliptical Rings (EE37)
- Bottlinger's Rings (EE38)
- Subparhelic circle (EE40)
- Subsun (EE44)
- Subparhelia (EE45/46)
- 46° contact arcs (EE52)
- Wegener's anthelic arc (EE56)
- Tricker's anthelic arc (EE57)
- Hastings' anthelic arc (EE58)
- Tape arcs (EE60)
- Heliac arc (EE61)
- Subhelic arc (EE62)
- Subanthelic arc (EE63)
- 9° Parry type arcs (EE66)
- 18° lateral arcs (EE67)
- 23° Parry type arcs (EE69)
- 24° lateral arcs (EE70)
- Moilanen arc (EE77)
- Unexplained Halo Types
- Halo displays
- How do halos form?
- Observe halos
- History
- Work of the AKM
- Kinds of halos
- Aurora
- Noctilucent clouds
- Meteors
- Atmospheric phenomena
- Halos
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