its a problem if you're in the beginning and want to check the size of the "big" red ones...
when you do so, you are out of control of your planet for a short time...
could be an idea to make the size visuable "on mouse over"
i used the time you needed for making this calculations to go to the fridge and open a beer. if you are fast you can make another interesting calculation and post it here. would you be so kind?