There are supposed to be 4 smaller ‘moonlets’ besides Charon, orbiting Pluto. It’s probably them.....................
And some may well be. If you look closely, there are blue objects in the top left quadrant relative to the planet and moon, and there are blue object below as sell.
There are at least eight objects. That’s why I suggest the blue spots may be anomalies. They can’t all be planets. If they were other spacial objects they would also be brighter.
I appreciate your response.