2019-04-06 - Saint George, UT - Formation

We were sitting outside on the deck, saw a light appear in the south east coming fast across the sky. We watched it and was waiting to see flashing light because we had seen lots of aircraft flying over but the light was too bright. As it moved from south east to north west, it kind of looked like a spider moving across the sky. It would speed up and slow down like the way spiders move up a wall. It also looked like it had feelers coming out the front of the object. As the object got 3/4 across the sky it blinked out and was gone.