Hi Gregg,
What I did is superimposed my graphic over the original photograph and sized/matched the stars you see with the original remaining stars on the photo. So the stars you see are exactly the same size in reference to the photograph. However, I went ahead and made another image below showing the original two stars of the MHF in juxtaposition with the the created graphic. As you see it would be pretty difficult to squeeze any more stars in that gap to make a 2/3 circle. If Jim gets a specs sheet from the musesum I will take your suggestion. That is if he will give me a copy, eh Jim?