Large yellow/orange circular object moving at constant speed, with instant change of directionIt was quite a bit after dusk, and most of the stars were visible on this clear night. Coming outside from the house, I immediately saw an object about the size of a penny held at arm's length. It was circular and yellow/orange in color, with a bright center and slightly dimmer radius. At first I thought it was a meteor, but it was moving slower than that and appeared larger and less bright. Its speed was very consistent, and was becoming more dim as it moved from south to north. I didn't think any of this was particularly unusual until it INSTANTLY changed direction, almost but not quite 90 degrees to its original path. It continued in this direction and became more and more dim until it faded completely from view. At one point it was obstructed by a bush in the yard, so I ruled out some kind of hallucination / visual artifact. There was no sound accompanying the object. The entire event lasted perhaps 15-20 seconds.