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 ...
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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 ...
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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 ...
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Sunday, 30 April 2023

Odd radius display on sunset time, 2022-10-16 (Jouhe, France)

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Often, when I see the clouds coming from west , I try to do a high cloud sunset to see if there is something to see (like sun pillar and sun...
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Friday, 21 April 2023

Sharp Lowitz & Parry display, in short time [2023-04-04]

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Here are some nice ice halos at the passage of a particular layer of clouds, during a clear sky day (2023-04-04, from near Dole, Jura, Franc...
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