I was leaving home around 8:17pm when i looked up and saw a big cigar shaped object moving slowly at approximately 45 degrees from my position at an altitude of about 700-900 feet. it was dark gray, with 4 flashing lights total (top, bottom, left and right side). it was about two 747 jet liners put together in size. it moved slower than the average jetliner. i know this because commercial airplanes fly above my house everyday to land in lax. also it was not flying in their usual flight path. it was flying sw in direction to the coastline. this object was huge compared to commercial airplanes and didn't make a sound. i was able to see it for about 2 minutes at the most. i tried to take a picture but all i could see in the picture was a blurred dark sky.