Large bright white sphere. No sound. Moved a constant speed. Appeared to be a few hundred feet above the tree tops.

Around 10:15 PM. We were toasting marshmallows by a campfire on the south side of Peters Mountain. One of the kids was yelling "Look!", then the other kids. When I looked, a large ball of light, which appeared to be a few hundred feet above the trees, was moving south at a constant speed, but somewhat slow. It was not directly overhead, but about 75 degrees above the horizon. There was no sound. Skies were clear and there were no storms around. When the ball/sphere came into view over the mountain from the north, moving south, it was sharp, meaning there was no haze around it. As it slowly moved south, it started to get smaller and changed colors: red, green and blue. The color changing just blended to the next color, it did not blink. Toward the end, before disappearing, it turned toward the east. The sharp sphere turned into a white haze. It then became smaller and seemed to fizzle away.
I did not get a photo at the beginning, but about 50 seconds into it. The photos are zoomed in from my phone. The last photo, which was right before it disappeared, you can see the white spherical haze eroding with what appears to be a square/cube in the center. No, it was not a plane, satellite, Venus or drone.