Monday, 23 December 2019

Winter Solstice elliptical halo

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I was outside working on the day of the Winter Solstice and saw AC clouds coming in and I anticipated elliptical halo and got my camera gear...
Tuesday, 27 August 2019

28° arcs from Yunnan, China

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Two rounds of week-long odd-radii outbreaks swept across southern China in July and August. The second outbreak turned out to be the more no...
1 comment:
Sunday, 18 August 2019

Odd Radius Display, Southern Ohio, USA, 17th August 2019

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On the evening of Saturday, 17th August 2019, I observed this complex pyramidal halo display. In total, I saw a faint 9d halo, lower 9d pla...
3 comments:
Sunday, 28 July 2019

Possible 28° (plate) arc from Changsha, China

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On July 1st, skywatcher Luo Wuping captured a decent odd radius plate display during sunset hours from Changsha, Hunan Province, China. ...
4 comments:
Thursday, 11 July 2019

Pyramidal halos 7-10-19

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Before leaving for work yesterday, I saw some cirrus clouds moving in and in a short time later 18 and 23d halos along 18d plate arcs, and b...
2 comments:
Thursday, 2 May 2019

Kern with subhelic arc in the UK

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Berkshire (UK), 28 April 2019: Top left corner shows what's left after applying the gradient subtraction and stretching of histogra...
7 comments:
Wednesday, 10 April 2019

A Swedish display points to a new halo

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Järvsö display at 1137 local time. Photo Louisa Westberg. Two days before the mighty Borlänge display in Sweden, on 12 December 2018 a...
5 comments: