People are seen near a Christmas decoration installed on city Square for the upcoming New Year and Christmas season in Skopje, Macedonia December 23, 2016. (Photo by Ognen Teofilvovski/Reuters)

View of a light show on the city's iconic Arc de Triomphe monument during the New Year celebration in Paris, France, December 31, 2016. (Photo by Jacky Naegelen/Reuters)

A man flies a kite made of 110 Tukkal or paper lanterns for the Hindu festival of “Makar Sankranti”, which marks the start of spring, in Ahmedabad January 13, 2011. (Photo by Amit Dave/Reuters)

A man poses for a picture in front of Christmas lights decoration at the Francisco Morazan square in San Salvador, El Salvador, December 22, 2020. (Photo by Jose Cabezas/Reuters)

People walk throw the Damascus gate during the Jerusalem Festival of Lights on June 15, 2011 at Jerusalem's Old City, Israel. The festival opened on Wednesday night and will run for a week in the Old City of Jerusalem, hosting Israeli and international artists and creators who will display their installations throughout the week. (Photo by Uriel Sinai/Getty Images)

An installation of Canadian artists Caitlind Brown and Wayne Garrett is displayed during the Lumina Light Festival in Cascais September 14, 2014. Lumina Light Festival shows artworks of artists from several countries, which are displayed during a tour around Cascais. (Photo by Rafael Marchante/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.