A Line of Orbs Above the Moon

Photo date: April 30, 2015. Photographer: Mark Mahin.

In the photo below the bright white object near the center is the moon. The four objects forming a line above the moon are mysterious orbs, such as I frequently photograph in the night sky using my full-spectrum camera (which can pick up some things invisible to the human eye). One of the orbs is purple, and another is pink.

There was no fog, mist, or precipitation on this night, and the air quality listed on airnow.gov was "good" with a number of 27 (anything below 50 is considered good).  This means there was very little dust in the air on this night.