Great Eldur (🔊) is a white star near the core of the Milky Way Galaxy around which the magical world of Eamon revolves.

The inhabitants of Eamon commonly identify their star simply as the Sun, and when referring to it by name often just call it Eldur. The name Great Eldur is used to distinguish it from Little Eldur, a distant golden companion star which orbits the rest of the system.

Three terrestrial worlds orbit Great Eldur, with Eamon being the largest and innermost. Little is known about the other two worlds, but astronomers have made careful measurements and accurate models of their movements through the sky. At least two worlds are known to be in close orbit around Little Eldur, but their nature remains a mystery.