While hoping to see meteors, I observed a light at a high altitude making odd maneuvers.

I first noticed the light when I was looking up at the stars, as at first I thought it was a very bright star. It started to hover in a circular motion and sometimes move in quick bursts, but would generally stay in the same spot. My backyard is underneath a flight path and this light was well above any planes flying over that night and stayed in this general spot for the entire time I was outside (~30 minutes). This light did not change colors but would have a rhythmic blinking pattern.