Formation and evolution of the Solar System apart by tidal interactions. Afterwards, all that will remain of the Sun is a white dwarf, an extraordinarily dense object, 54% its original mass but only the size of the Earth. Initially, this white dwarf may be 100 times as luminous as the Sun is now. It will consist entirely of degenerate carbon and oxygen, but will never reach temperatures hot enough to fuse these elements. Thus the white dwarf Sun will gradually cool, growing dimmer and dimmer. As the Sun dies, its gravitational pull on the orbiting bodies such as planets, comets and asteroids will weaken due to its
Sun and Moon (Middle-earth) light of the Sun before it was tainted by Melkor when he ravished Arien. The name of Narsil, the sword of King Elendil (later reforged for Aragorn as Andúril), contains the elements "nar" and "thil," "fire" and "white light" respectively in Quenya, referring to the Sun and Moon. The Man in the Moon is even described in those writings, as being an old Elf who secretly hid on the island of the Moon, and built a minaret there. This is alluded to further in Tolkien's "Roverandom", in which the Man in the Moon also lives in a minaret. Combined with