Splitting luminous points seen by a teacher in Yvelines

Summary

On 13 June 2005, a teacher and his students in Yvelines observed a star-sized luminous point that, after a few minutes, split in two. Shortly afterwards the witness noticed several points moving slowly among themselves at high altitude, resembling aircraft. He took photographs with his phone but did not hand them to the Gendarmerie. The most plausible explanation points to sunlight reflecting off commercial aircraft at high altitude.