This is what triple suns look like 
in an episode of "Futurama".

People looking at the sky caught a glimpse of what looked like three suns in the northern Chinese city of Chifeng, Mongolia.

The astronomical optical illusion, also called a "sun dog", is caused when ice crystals form very high clouds which reflect the sun in a specific way.

Triple suns over China

My Three Sons, Futurama>>