Sol
The Sun has a single entity in orbit. A planet that would, in any other solar system, be so small as to be called a moon. But it is the only body around this particular star. It has circled around for countless cycles. It is pockmarked with craters; disturbances to its grey skin that, perhaps, occur once in a hundred million years. It is covered with the things.
It has a special relationship with its Sun. Without it, it would be little more than a lowly comet, lost and aimless in the vast Nothing. Yet the Sun scorches the surface that faces it. And the underside, the surface that can never see the Sun, is so very cold.
More.