Several symmetrical, dim orange lights, moving slowly across the sky then fading away and disappearing.

I was coming out of my parked car in my apartment parking lot when one of my neighbors was outside looking up at the sky. He asked me if I could see the lights? I looked up and at first, glance only saw a star but then looked again where he was pointing. I saw several orange lights perfectly lined up together moving across the sky slowly. It was hard to tell if they were separate or riding together on the same craft. It moved slowly across the sky and then faded away disappearing from sight completely. We both agree this was the strangest thing we have ever seen in the sky ever. It did not have the look of a plane or helicopter which I have seen many of those these lights were different. The lights were not bright or flashing. They had a dim glow to them and it almost seemed like it was hidden and then faded away. No clouds in the sky or anything it was a dark, clear sky.