A Hindu devotee lies on a road as she worships the Sun god during the religious festival of Chhath Puja in Kolkata, India October 26, 2017. (Photo by Rupak De Chowdhuri/Reuters)

A light pillar is a visual phenomenon created by the reflection of light from ice crystals with near horizontal parallel planar surfaces. The light can come from the Sun (usually at or low to the horizon) in which case the phenomenon is called a sun pillar or solar pillar. It can also come from the Moon or from terrestrial sources such as streetlights.

In this Wednesday, September 17, 2014 photo, the sun shines over a field of sunflowers in Walkill, N.Y. (Photo by John DeSanto/AP Photo/Times Herlad-Record)

A Bull Frog hops around as Carlos Costly #13 of Honduras brings the ball up against the USA at Sun Life Stadium on October 8, 2011 in Miami Gardens, Florida. (Photo by Marc Serota/Getty Images)

Girls make a heart sign as the sun sets over the Mediterranean Sea coastline in Beirut, Lebanon, Friday, July 14, 2023. (Photo by Hassan Ammar/AP Photo)

Singer Dua Lipa and her fiancé, Callum Turner, soak up the sun and unwind together during their lively vacation in Ibiza, Spain on August 14, 2025. (Photo by Gtres/Backgrid UK)

People watch an eruption of the South East volcano of Etna is seen from the village of Nicolosi, Italy February 10, 2022. (Photo by Antonio Parrinello/Reuters)

Mangrove in Walakiri Beach after Sunset in East Sumba, Indonesia in 2018. (Photo by Sarubabel Malau/Rex Features/Shutterstock)