I am a licensed atp (airline transport pilot), certified flight instructor, instrument instructor and multi engine instructor. i have flown for two airlines. i teach corporate jet training. i was a safety instructor for the faa. there aren’t any civil aircraft ever seen in this area. object made no noise. was not a drone due to the speed that it flew. you never see any aircraft in this area at all. no contrails either. ever. i got only a single picture. it was taken from the jinyun number 2 bridge, highway g330 in jinyun county town, lishui, zhejiang china. i was hiking the forested area south of the city. object appeared from behind a nearby mountain and flew behind jinyun tower disappearing behind a tree line. object moved straight line making no noise at a constant speed. no lights observed. object was stable, no wobble. there were a few low level cumulus clouds present. temperature was approximately 57°. i had the iphone 7+ pointed in the same general direction taking pictures. object caught my attention because there just isn’t any air traffic in this area. it’s general shape did not look right. (not like an aircraft)