Not sure about the ring around the circle around the fist. 4 stars do make sense. Maybe try using the Great Red Spot as a symbol?
Feel free to disregard this third party comment however.
In my mind, the ring makes it clear the circle represents a planet and not just a random emblem within a circle. The Great Red Spot as a jovian symbol is a good idea but in this specific case, it would clash or look like a mistake if included with the fist.