The Halo Vault

Cold spring has kept diamond dust popping up late. On 28 April a display with sharp Moilanen arc was seen in Järvenpää of southern Finlan...

By Marko Riikonen and Jarmo Moilanen These photos show a colored patch at the bottom of Moilanen arc. We don't quite know what it i...

By Marko Riikonen A simple diamond dust display that I photographed on the 6th of this month in Rovaniemi, shows above the Moilane...

The two images above, which are versions of one stacked image, show a torch shaped Moilanen arc. This is the shape that the halo takes ...

By Vladimir Galynsky  On 21 February ice crystals filled the air in Rumyancevo, a suburb of Moscow, and a halo display with relatively ...

Here is some more material from the diamond dust in Rovaniemi three nights ago. After the heaviest Parry-crystal bombarding was over, Moil...

We have now enough photographs of Moilanen arc to make some suppositions of the responsible crystal. As lower component of Moilanen arc ...

On January 26, 2007, Claudio Martinez watched and photographed a complex diamond dust halo display at the Baqueira Ski Station in the Sp...

Jaakko Tähti photographed this moderate display with Moilanen arc on 12. January 2007 in Viitasaari. "The halo display lasted for a...

In the evening of 4 November this lunar display graced the sky soon after sunset. Among the halo forms observed are the rare heliac arc, Tap...

This picture was taken on December 10, 2005 by Wolfgang Gurgiser at the summit of the Hohe Salve (1829 m, Kitzbühler Alps, Austria) at a te...

Marko Mikkilä has opened a gallery for his halo photos. Shown are the best diamond dust displays from the nearby ...

This display was photographed by Pertti Havia on 21. December 2005 in Huhko, Southern Finland. The V-shaped Moilanen arc above the tree ...