Round bright light pulsing colors in the center and every couple minutes changed to a larger square/diamond shape that pulsed.

It looked like a bright star so I got my cannon video recorder and zoomed in on it and noticed it was a pulsing circle shape from white to a couple other colors, but pulsing in the center, and every couple minutes or so it would change into a larger diamond/square shape that also pulsed, then a couple minutes later change back to the pulsing circle shape. I put the video on youtube. I seen it before a few times that past month or so traveling on this path very slowly, but I always thought it was a star and this was the first time I zoomed in on it and realized I don't know what it is. It lasts about an hour or more as it moves slowly north west out of site into the distance. I'll try and get more video when I see it again.