Earth

Earth is the home planet of humans. Earth exists approximately 40 light years from the planet of Saylua in a separate galaxy known as the Milky Way. Earth's radius is about 30% larger than Saylua's radius. Compared to Saylua, however, Earth has a very long orbit of 365 days. Earth's star, the sun, is a yellow dwarf while Saylua's Sayaris is an ultra cool dwarf star.

Moon

Earth has a moon orbiting the planet, which is not to be confused with Saylua's moon, Luaris. Unlike Luaris, Earth's moon is a satellite of the planet, orbiting its host planet about once every 27 days. On Earth, humans frequently referred to their moon simply as "the moon", a practice which is also used in Saylua to describe Luaris. For humans on Saylua, the term "moon" has come to colloquially refer to a bright, highly noticeable celestial body in the night sky rather than a satellite which orbits a planet.