Odd-radius halos (w-054-20)
In gallery: Photos of the month (1999)
Related photos: Atmospheric optics
Ice crystal halos
A very rare halo display over the Dutch country occured on May 26, 1999. A large ice crystal cloud which was over the western part of the country consisted of rare, pyramidal ice crystals, creating 9, 18, 20, 22 and 24 deg. halos around the sun. Taken at Amsterdam, The Netherlands, on May 26, 1999.
Kodak Gold 100 film, exp. 1/500 seconds at f/11 with 28mm lens.