Rather large brilliantly bright stationary object, bigger than a helicopter hovering to the East of I-87We were driving south on I-87 and were almost entering Greene County but were still in Albany County. We saw a bright light to the East most likely close to the Hudson River. It was stationary and not completely symmetrical. As we approached it going south it did not move or flash. We went past it and almost under it. A few miles up the road we entered the New Baltimore Service area, got out of the car and looked to the north. There was no sign of it.