PlanetoidPlanetoid (meaning planet-like) is an old synonym of asteroids. The term is again coming into use, but now meaning only the largest asteroids and trans-Neptunian objects like 1 Ceres, 50000 Quaoar or Sedna. See minor planets, asteroids, Kuiper Belt objects. |
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"I'm all in favor of keeping dangerous weapons out of the hands of fools. Let's start with typewriters." - Frank Lloyd Wright (1868-1959) |
