I was sitting in my hot tub gazing up into the night sky watching for the usual meteors and satellite. I noticed a blurry white light moving slowly and silently in a straight line from the west to the north-east towards the city Klamath Falls. It appeared to be about 12 to 15 miles away from my viewing spot. I quickly got out of the hot tub and asked my wife to come outside to see it too. I then ran for the binoculars and looked at the object. It continued its slow northeasterly path and it remained a soft blurry white light. I watched it until it faded out of site. I did not see any green or red navigation lights or any strobe light. It was too large to be a satellite, and I'm convinced it was not a jet or prop driven airplane, keeping in mind that it made no sound. It was a perfectly clear night sky, no clouds, haze or moisture in the air. I am pretty convinced we spotted a UFO of some kind.