^^
ok dude it's an optical illusion, airliners don't hover. The plane was simply about to land and thus was traveling at a very low rate of speed. The effect is even stronger if it's coming towards you, because its trajectory is direcly alligned with your eyesight.
For example, on a very long straight flat stretch of road, if a car is coming straight at you very fast from a good distance, you'll have the impression that it's not really moving, or moving very slowly because it doesn't move from your perspective. It will just get slightly bigger and bigger as it approaches (againd because of your perspective).