Three bright orange spheres quite large flying in an arrow like formation. They were coming from the South East direction heading North. Another came from nowhere and seemed to be trying to catch up. It didn't actually get into the formation but seemed to hover behind.

When the last one caught up they seemed to turn upwards and dissapeared quite quickly.

The sky was clear, no clouds at all. All the stars were clearly visable. There was no noise at all,even though there had been a plane some time before which was quite clearly visable and audible. I called my neighbour to see and she tried to take a picture on her phone but although she could see the stars the orange objects would not show up! We were completely sober.