@Grey Fox: Looks nice. But I wonder if you are going to implement the jovian planets of a solar system as well. I realize that those cannot be colonized, but their moon systems can. Also, from the sol system picture you showed us, it seems that those jovians will be kept outside "city range", so be unexploitable as we know the game. Do you plan on implementing the extended city range mod here so those far-away jovians could be exploited as well?
Another suggestion: how about rearranging solar systems so that the first row of plots around a sun contain planets as well? That first row could be considered as depicting the planets that might be habitable for the typical oxygen-breathing race. You could put more planets around a sun if needed, and linked with the extended city range mod the third row of plots could be used to depict the outer ranges of a solar system with stuff like comets, ice-dwarfs (plutino's) and the like.
Well, keep up the good work.