Orb with four red lights.

It was 2.30am. I stayed up so long playing on a new game that i bought. I was about to close my curtains, when I noticed something in the distance. I live opposite a large school field. I noticed that there was something above the horizon. It was like an orb, with about 4 red lights. I thought at first that this was a helicopter or an aircraft. However, after I realised this would be impossible, as it was too low, made no noise, and didnt move.
I decided to take a closer look. So i went outside, closer to the field. I saw this object a little closer. It was a round object, mid air, with about 4 red lights. These lights were flickering. I watched it for about half an hour. Then it disapeared, it moved upwards slowly, then vanished, with each light disappearing as it moved upwards.