The Halo Vault

14-16 May saw Finnish atmospheric optics enthusiasts gathering in Finnish Astronomical Association's (URSA) Artjärvi observation center....

Although our blog name "Halo Reports" had served reasonably well all these years, we felt it is time for a change. The blog is now...

A series of complex halo displays occured in Eastern Europe between 27 March and 6 April. The first display in this series was seen in Vecs...