The Halo Vault

  At the 19th of January 2021, Jarda Fous (the most active diamond dust observer in Czechia as of now) was planning a trip to Boží dar at Or...

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,...

  The two displays above have both a faint parhelic circle, but the one on the right has a notable omission: there are no parhelia. These ph...

After having spotted reasonably thick diamond dust from a distance while taking the sheepdog out, I spent good few hours outdoors observing ...

 Got home from work and being it was cold I ten to want to go over to my dad's car and look for halos in the frost crystals. I went over...

  When you do spotlight, two things are desirable: a dark location and stable swarm. On the night of 17/18 December in Rovaniemi both were r...

At midnight I decided it was time to go. The plume of the heat plant 6 km from my place had developed a kind of bend that could signify an i...