Photo date: February 14, 2017. Photographer: Mark Mahin.
The photo below shows two purple orbs I photographed near a building in New York City.
There was no fog, mist, rain or precipitation on this night. The air
quality listed on airnow.gov was "good," with a level of 38. The pollen
count listed on pollen.com was "low," with a level of 0.6.