I first observed a head group of three lights in a triangle formation going very quickly (like satellites) from north to south direction . then i go outside of my house and then i saw other lights coming behind the light triangle. they all had the same speed, with each time, an interval of space well definished. duration of the sighting : 3 minutes more or less. during the observation, one of the light, bruptly stop, make a return (without interfering with others) and stayed at the latest place he was. he was staying at his place and watching others : this scene was like : "hey guys are you all right?". at this moment i go back to my house and take my camera (40 sec approximatively). when i returned outside, i just take the end of the convoy of lights with two pictures. it was the end. my first picture was too dark and then i make a new shoot with more lights. specs of the camera : canon eos 7d first picture : opening time 3 seconds, iso 1600, aperture 2.8 : i have captured and identified 9 objects on this picture, objects are going down on the horizon just next to the tree. second picture : opening time 30 seconds, iso 1600, aperture 2.8 : i make the wrong choice. on the picture, we cannot see how many objects there is but we can see that there are objects going all in the same direction i attach the original pictures and also pictures modified with contrast and brightness tuned. it is difficult to see without modifying the brightness and the contrast.