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Retrograde motion of the planets: Everything you need to know - BBC Science Focus Magazine.
Apparent retrograde motion is the apparent motion of a planet in a direction opposite to that of other bodies within its system, as observed from a particular vantage point. Direct motion or prograde motion is motion in the same direction as other bodies.
May 10, 2024 · Learn how planets appear to move backwards in front of the stars due to our perspective, and how some planets and moons have true backward orbits. Find out the causes and examples of retrograde motion in astronomy and astrology.
Oct 19, 2023 · Learn what retrograde motion is and how it affects the apparent motion of planets in the sky. See how Earth's orbit and tilt affect the appearance of Mars' retrograde loop and stationary points.
- 4 min
Retrograde motion is the direction opposite to the main motion of most celestial bodies in the solar system. Learn how planets, satellites, asteroids and comets can display retrograde or direct motion, and how it affects their orbits and appearances.
- The Editors of Encyclopaedia Britannica
Jan 29, 2024 · Learn how retrograde motion is caused by differences in the planets' orbital speed and how to observe it in the sky. Find out when and how often each planet goes retrograde and how it affects us.
