Sun dogs over Stockholm painted by Urban
APR 20, 2015
DOI: 10.1063/PT.5.030947
On this day in 1535 the atmospheric phenomenon known as sun dogs appeared in the sky above Stockholm, Sweden. A painter called Urban depicted the event, creating the earliest known recording of the phenomenon. Sun dogs belong to class of halo effects; they are caused by sunlight scattering off ice crystals. Urban’s original painting was lost. The oil painting here is a copy made in 1636 by Jacob Elbfas.
Date in History: 20 April 1535
© 2015 American Institute of Physics
