Object in Sky in Cary, NC

The object was large, made no sound, and had 5 rotating circular compartments with two areas for lights. This object came over the treeline to my right along with a smaller object. I was looking at it through the passenger window. I was looking at the bottom side of this object. This object had 5 circular-shaped compartments with two areas for lights and each circle was rotating and the 5 circular things were also rotating. The smaller object was moving back and forth to the larger object quite quickly. The object was dark grey and where the lights were attached the circles would rotate the object could change shape. I could see the mechanical movements of the object, the rotations of the entire object, and the rotation of the area where the lights were on the object. I grabbed my phone and took 3 pictures, and in the first picture, the white blurry line is the smaller object moving fast to the larger object the video I took was before it left out of sight and the video has been slowed down.