The Halo Vault
Tuesday, 24 February 2026
Discussions on a former observation from the Pic du Midi observatory (France) on 2003, March 29th
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During a coronagraphic mission of one week at the Pic du Midi observatory (altitude: 2,877 m) , Marie-France Balestat and Fréd...
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...
9 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...
10 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:
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