I first saw this thru the trees in the distance of southwest travelling towards my house, as it came closer there is a clearing around my house so the sky was unobstructed by trees. this thing had what appeared to be 3 bright white lights grouped together closely..No typical red/green flashing navigation lights like a regular aircraft. it did not fly erratically, just in a straight line right over the house about 1-2k feet......But completely silent.