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orbital inclination

(angle between plane of an orbit and a reference plane)

An orbital inclination is the angle between the plane of an orbit and a given reference plane. For example, the orbital inclination of an Earth satellite might be given using the plane of the Earth's equator as a reference, or the plane of the Moon's orbit. The inclination of a planet's orbit is often given using the ecliptic as a reference.

The term is used for binary stars and extra-solar planets using the plane of reference to be a plane perpendicular to the line-of-sight from Earth.



Referenced by:
Kozai mechanism
Kuiper Belt (K Belt)
Oort Cloud
Planet Nine
planetary migration
Proxima B