I went outside of house to pick up the yard, looking up i saw a triangle shaped object coming from the south. i think it as big as a house. passed over top of me and as i watched it , it had a 3 big bright blue lights on the bottom, dark in color. i stood there dumb founded as to what it was. was alone no one else home to yell out to and neighbors would thought i was nuts so i watched. it was moving slowly as it got past me, it turned to the east. watched it for about 5 minutes. then it sped up and faded away. ok i am nuts or what? thinking the height was 500ft or more in the air.