[JAFisher44]

I think that in SEV both stars and planets are inflated in size for "graphical depiction"

If you suppose that the entire system map encompasses say orbit of Pluto, that means that the system map is about 50 AU from center to edge. This gives you a rough distance of about 4 AU per hex. At .01 AU a star would be 1/400th of a hex across. Even if you reduce the map to 1 AU per hex a star will still only be 1/100 of a hex across. Either way, it will be as small as the stars in the background if you want to display it realistically.