Driving north on interstate 93 north between exit 39 and 40 with 3 other family members. Noticed a double hovering light approximately the size of 2 basketballs. I asked if they saw the lights and 3 stated they did, the other person was younger and did not have a line of sight. As we drove north it appeared to hover in place, I assume somewhere between 200 and 300 feet above treetop level. The occupant in the passenger seat had a better view and stated that there was an additional object just adjacent to this object and it appeared to them as 2 long lights, directly next to each other. We pulled off the highway at exit 40 and the object clearly had 3 lights now all of which were evenly spaced forming a triangular shape and was now moving slowly (similar to a higher flying aircraft, but appeared much closer) in an westerly direction towards the town of Sugar Hill. As we witnessed the lights at no time did any of the lights blink, flutter or change.
Temperature 17 degrees. Mostly clear with limited over cast.