Observing the night sky i saw a ufo crossing from sw, just left (e) of the moon, towards the ne at high speed (faster then most satellites) some 15-20 secs later another ufo appeared at the same spot and flew with same speed and same track. this repeated every time the same with 12 or 13 ufo's in total. (that i have seen) because there was about 2/8 cirrus, mainly to the ne, i was unable to see where and when they disappeared. the ufo's were less bright then the stars they passed (arctures and surrounding stars)