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Retrograde

Occurs at various times of the year in the orbits all of the planets in the solar system--excluding the sun and moon. In these periods, which can last several months for the slower-moving outer planets, the planet appears to be moving backward from the point of view of the earth. This illusion occurs because while they are on the opposite side of the sun from the earth, they appear to be moving in the opposite direction from us.

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  • Part of Speech: noun
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  • Industry/Domain: Astrology
  • Category: Zodiac
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