UNIVERSE
SATELLITESICY BODIES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Perigee
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Apogee
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Major axis
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None of the above
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Detailed explanation-1: -The point on the Moon’s orbit closest to Earth is called the perigee and the point farthest away is the apogee.
Detailed explanation-2: -The point of the orbit closest to Earth is called perigee, while the point farthest from Earth is known as apogee.
Detailed explanation-3: -The point of closest approach to the Earth is known as the perigee (from the Greek peri = near). At this point in the orbit, the object is moving at its maximum speed (Kepler’s Second Law). The perigee refers specifically to orbits around the Earth, and is equivalent to the periapsis of a general orbit.
Detailed explanation-4: -The point of maximum separation from the Earth is known as the apogee (from the Greek apo = away from). At this point in the orbit, the object is moving at its slowest speed (Kepler’s Second Law). The apogee refers specifically to orbits around the Earth, and is equivalent to the apoapsis of a general orbit.
Detailed explanation-5: -The Moon revolves around Earth in an elliptical orbit with a mean eccentricity of 0.0549. As a result, the Moon’s distance from Earth (center-to-center) varies with mean values of 363, 396 km at perigee (closest) to 405, 504 km at apogee (most distant).