20 light spheres travelling across the sky over Hamburg, Germany, on 15th Jul 2007The night was pretty clear, no moonlight & only a few strips of clouds. Red-orange light globes slowly crossed the sky, coming over the horizon in the West and travelling SSE.The lights did not give the impression of flickering (not even atmospheric) and were of identical size. The travelling speed could have only seemed slow due to the distance and taking into account a possible upword movement. On first sighting, the globes seemed close together, but crossing the sky it appearded to be a loose formation, 4-5 moving ahead, a middle field consisting of 8-10 lights, and 2 more far back. Towards the end of the spectacle, the first 4-5 seemed to be above a strip of clouds high up, because they were partly hidden by it, then reappeared; while the last two were just below a strip of clouds.The light intensity did not seem to fade because they "winked" out, but faded rather because of putting distance between them & us.We took some pics, but they're not good enough to make out more than a few points of light.