Solar is a rather large celestial body in the Lylat System. It is either a dim star or a planet. It was shown in the center of the Lylat System in Star Fox 64, giving the possibility of it being a star, as it is implied, but according to other data it would not be able to support the whole Lylat System. In fact, it is clearly stated in Star Fox Command that Solar was a planet, and there were hard spots clearly visable. And, in the unreleased Star Fox 2 there is another star visable on the map screen, which is thought by fans to be the true star of the Lylat System, commonly called Lylat.
Well, either Lylat is a two star system (yes, there are those in real life) or Solar is just a planet, but it is somewhat obvious that Solar is not the main star of Lylat.
Well, I could write a novel on this, but here are the stats on this diorama:
Cost: roughly $592
Area ("bumps"): 48 x 80