The Earth-Moon System: Astrophysical Analysis
384,400 kmMean distance
363,300 kmPerigee
405,500 kmApogee
EARTH (TERRA)
Diameter: 12,742 kmMass: 5.97×10²⁴ kg
Orbital period: 365.25 days
Axial tilt: 23.44°
LUNAR PHASES
New
Crescent
1st Q
Gibbous
Full
Gibbous
3rd Q
Crescent
MOON (LUNA)
Diameter: 3,474 kmMass: 7.35×10²² kg
Gravity: 1.62 m/s²
Synodic month: 29.53 days
Magnetic field · Orbital velocity
Moon velocity: 1.022 km/sOrbit tracking
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Animated illustration — figures are approximate astronomical values for education; motion is not to scale.