Below you can find the A star in this constellation known as the swan was the first to have its distance from earth measured Jeopardy Words Answer. The answer to A star in this constellation known as the swan was the first to have its distance from earth measured has 6 letters. This clue belongs to the Constellations category and is part of Jeopardy Word Level 325. If you scroll near the bottom you will find other clues and answers part of level 325