A meteoric stream of Persiida will reach peak of activity in nights for August, 12th and 13th. On Friday employees of an observatory in Pulkovo informed about it. According to astronomers, the most successful time for supervision – from midnight till early morning. This year the most intensive stream is not expected, though the last years it was possible to see about 200 falling meteors in an hour. “It will be possible to observe a stream even under the bright moon,” – the representative of an observatory has added.