Watched a green-white light pass very quickly in the sky. only white-green light was seen, but it looked solid. the light disappeared only to reappear several hundred feet away about a second later. the disappearance was very quick and the light seemed to diminish like it had been shrunk, but it appeared to be the normal size when it reappeared. was in my room by myself, watching sunset. unknown if there were other witnesses. the object flew in a straight line, seemingly directly going south. can tell by the street system. object disappeared again and that's how i lost sight of it. my feelings were unchanged after seeing the object. no physical changes after seeing the object but only about 10 minutes have passed at most. the light was very light (close to white). did not have green and red markings to indicate it was an airplane. shape matched no known aircraft.