Rare sundogs accompanied by a reverse rainbow stunned residents of Calama and Antofagasta, Chile on February 17, 2016.
As if the parhelia was smiling at us from the sky.
So we have seen three different kinds of atmospheric phenomena in these pictures… Sundogs or parhelia which consists of a pair of bright spots on either side on the Sun. Circumzenithal arc which is an optical phenomenon similar in appearance to a reverse rainbow. And finally a circumhorizontal arc which in its full form appear like a large, brightly spectrum-coloured band running parallel to the horizon, located below the Sun or Moon.
All these sky phenomena are members of a large family of halos, created by light interacting with ice crystals or rain in the atmosphere.