Sunday, 18 January 2026

On halo naming

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  I have written some thoughts on halo naming.  Google Docs: https://docs.google.com/document/d/1wCHmYaO5bZHeeQH-uEhWV51xBj1i_oPDAtoWKbxrm0o...
Thursday, 15 January 2026

Review of the Rovaniemi 2023-11-11 Display and further research on the MS halos in the Borlänge and Naapurinvaara Displays

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  ©Marko Riikonen The Rovaniemi Display of November 11, 2023 – possibly one of the greatest and most bizarre Super Displays ever – a sentime...
8 comments:
Thursday, 1 January 2026

Diffracted 22° Parhelion (Sundog's Corona) from BeiJing, China(2026-Jan-1)

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  A strange spot appeared on the inner side of the right 22° Parhelion. Obviously, it was not any odd radius halo. To me, the reason for thi...
6 comments:
Wednesday, 27 August 2025

Sub-Liljequist and probable 'sub-Liljequist Blue Spot' in high cloud above China

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  The sub-Liljequist 'Parhelion' in high-clouds is rare. On August 14, 2025, a user ' 太平洋蓝藻 '(ID: 516836436) from ' Bili...
1 comment:
Friday, 9 May 2025

Halos of Venezuela

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South America is pretty much a blank slate what comes to halo enthusiasm, so it is encouraging when we got contacted from Venezuela by Frank...
3 comments:
Thursday, 20 March 2025

A grand Bottlinger's rings in diamond dust (2025-Jan-12, China.)

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  A spectacular event of Bottlinger's Rings occurred on January 12, 2025, in Hemu( 禾木 ), Xinjiang, China. For China , this was the first...
Saturday, 18 May 2024

High-altitude pyramid column arcs and kaleidoscope sky （6 May，China）

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 Every year from March to May seems to be the pyramid column arcs' season for China. In the 2024 season, the most eye-catching display o...
8 comments: