Topic
Orbital Motion
2 questions tagged Orbital Motion — spanning every one of the seven Ws.
what
What is a retrograde orbit?
A retrograde orbit is an orbit in which an object moves opposite to the rotation of the body it circles. Most natural moons orbit prograde, so retrograde motion is less common.
AstronomyOrbital Motion
whose
Whose law describes how planets sweep out equal areas in equal times as they orbit the Sun?
Johannes Kepler formulated the second of his three planetary laws in 1609. It says a planet moves faster when it is closer to the Sun and slower when it is farther away.
Solar SystemOrbital motion