Star-like object flying towards the city of warsaw. vey high, barely visible. no sound at all. it appeared right in the middle of the big dipper constellation (otherwise i wouldn't even notice it). i really had to strain my eyesight to see it. it was just like a dim star - only it was moving. grey or orange in colour (i would say grey but i felt for a moment while staring in it, that it might've been orange). altitude i can only estimate, that it was more than 40 000 ft. not a plane nor iss (i checked both flightscanner and iss live). and comets aren't moving that fast. i went inside to grab my binoculars and when i was back it was gone. what was it i have no idea.