Strange circle formation of lights observed above Tucson, AZ hovering and moving northeast towards Oracle, AZ.

At approximately 7 p.m. mountain standard time two witnesses observed a strange formation of lights in the sky. The formation was comprised of one larger light, with smaller lights in a web-like pattern surrounding the larger light in a circle. Around the formation, seemingly moving with the formation, was a distinct halo of gaseous or fog-like material. The formation hovered for minutes, when initial movement was observed, it can only be described as moving in a cadence similar to how a frog swims through water. Witness 2 counted two beats between each movement. When watching through binoculars witness 1 observed the color of the lights change from a pale white to a red hue. The witnesses momentarily lost sight of the formation as its lights seemed to dim or fade. Witness 2 caught sight of the formation again, this time at a lower altitude and with lights appearing to be a light green hue. Witness 2 followed the formation with binoculars as it moved steadil! y from southeast to northeast at a much lower altitude. Witness 2 watched the formation until it was out of sight. Witnesses did not photograph or record the formation because cameras on hand could not focus on the formation in a detailed enough manner.