Bean, the same word albedo applies to any astronomical body that shines by reflected light (rather than by light of its own generation, as a star).

As I recall, for many years after the planet Pluto was discovered it was thought to be substantially larger than our current estimates. The prior estimate was based on noting its apparent brightness in the sky, and calculating how big it would have to be to shine that amount of light to us at such a distance. However, it was later found that Pluto shines with that brightness because, although much smaller, it has an unusually high albedo.