Ephemerides

Ephemerides is an astronomer of Moonglow in Ultima VI.

Ephimerdes told the hero that he specialized in tidal predictions, and he also fashioned devices like sextants and lenses. He was also working with Troy of Minoc to develop a mechanical model of the solar system. The astronomer gladly sold the Avatar one of his sextants, while showing off his theory of a flat world with a model, explaining exactly how he envisioned Britannia. Later, when asked about glass lenses, he was able to craft a concave lens after examining the convex lens that Lor-wis-lem created, but needs a Glass Sword to melt down for the process. He even took the time to trick the Avatar into thinking he had destroyed the sword during his first attempt, but quickly fessed up.

Trivia

 * His dialogue about the flat world is one of few in-game references to the new world model in Ultima VI, in which Britannia had suddenly become flat.
 * The mechanical device mentioned by Troy in Ultima VI may be the precursor to the Orrery visited by the Avatar in Ultima VII.