Pluto, a dwarf Earth, has 5 moons. Its greatest moon Charon, named once the ferryman who took souls through the River Styx, is a lot more than fifty percent as big as Pluto by itself, and huge enough to orbit a degree outside Pluto's floor. Giant-effect hypothesis. In Wikipedia. By https://bestmoons16058.review-blogger.com/56371218/moons-an-overview