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inferior planet

NOUN
  1. any of the planets whose orbit lies inside the earth's orbit

How To Use inferior planet In A Sentence

  • What appealed to them in Copernicus™ model was its ability to do away with ad hoc devices in Ptolemy's system (such as the equant), to explain key phenomena in a pleasing fashion (the observed retrograde motion of the planets), and to explain away otherwise inexplicable coincidences in Ptolemy's system (such as the alignment of the Sun and the centres of the epicycles of the inferior planets). Thomas Kuhn
  • Mercury is called an "inferior planet" because its orbit is nearer to the Sun than the Earth's.
  • Mercury is called an "inferior planet" because its orbit is nearer to the Sun than the Earth's.
  • Mercury and Venus are inferior planets
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