UFO Sighting in Vacaville, California on May 30th 2015 – was taking photos of sun dog creatig rainbow around sun. took pix and notices what i captured. I had no idea what i was photographing

I was outside on he front step, went out to the drive way looked up into the day sky and noticed a cool rainbow effect around the sun. I starting shooting wit my galaxy alpha. I couldn't make out what i was shooting because the sun was so bright and whited out my phone display. I did my best at several vantage points to catch the sun dog. I later went through my pictures and noticed the orb, which seemed to be through out the image sequence and moving in some sort of pattern. I looked closely and realized there are lights within the orb in a specific patter which seem to stay in equal pattern but in different perspective as if a round object would with lights on it. I also noticed a purple hue around the orb. In one picture there seems to be something in the sun angled almost like a line or disc at an angle, the rest of the shots have the orb against the blue of the atmosphere.