The Halo Vault

The display occurred on 18 of March and I observed it from Vilnius, Lithuania. For the whole day, cirrostratus clouds covered the entire sky...

Sunshine has been a rare phenomenon in Finland this winter. On 16th January, the sky was finally clear and temperature had dropped to -25°C,...

11-frame stack at sun elevation 2°: unsharp mask and colour enhancement (top), and background subtraction + blue-minus-red colour subtrac...

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...

There was an odd radii halos outbreak in the Czech Republic and Hungary in the past few days. Multiple rare halo forms were captured. ...

On the 5th April 2018, there was a short lived but rather nice odd radius display in Bolton, a town situated in the north west of the Unite...

On 4th March Jitka R. from the Czech republic captured this magnificent odd radius display on the Moon. After stacking multiple image...

On June 4th a cold front was advancing towards Czechia with thick Ci/Cs cloud cover ahead of the front. Zbyněk Černoch was keeping an...

In the afternoon of 26 March, 2017, I was spending time outdoors with my family and wasn't too well equipped for serious observing. Of c...

A short-lived display of relatively high quality occurred in Berkshire, UK, in the morning of 4th March, 2017. A routine check at 9...

Above are two stages of a display and they both have parhelic circle. I sort of understand the parhelic circle in the upper photo as ther...

By Jarmo Moilanen and Marko Riikonen This odd radius display appeared on the night of 17/18 January in Rovaniemi at -29° C. Visible ...