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:
Wednesday, 6 March 2024

Two below-sun Tape arcs in German Alps, 9 January 2024

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by Lasse Nurminen:   One of the great things in the modern day observing is the possibility to explore the web for observations around the ...
1 comment:
Saturday, 30 September 2023

An attempt at high cloud 44° parhelion

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High cloud 44° parhelion is still waiting for its capturer. A chance to try for one came on September 28 this year in Kontiolahti, Finland, ...
Friday, 28 July 2023

Simulation-like 18° plate arcs and puzzling 22° arcs from airplane, China

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On May 24, 2023, I witnessed a very high-quality case of 18° plate arcs while onboard a flight over Southwestern China. Due to my busy work ...
4 comments:
Thursday, 18 May 2023

Digging up old odd radius display for 28d spotting

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Hello everyone, after several talks with Alec, I decided to make some digging into my old odd radius halos displays to search for rare halos...
Monday, 1 May 2023

Time Machine: High Cloud Hastings Arc in China, 2012.02.22

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The Hastings arc is among the rarest of all halos, even more so in high clouds. On Feb 22, 2012, XU Guodong was blessed with an outstanding ...
1 comment: