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Inclination is the angle between the plane of an orbit and the plane of the ecliptic. Orbital inclination is abbreviated as i.
The ecliptic is inclined at a 7° angle from the plane of the Sun's equator. The Earth's axis is tilted at a 23.5° angle from the ecliptic (which causes the seasons). The planet Pluto's orbit deviates more than any other planets from the plane of the ecliptic, with an inclination of 17° from the ecliptic. |
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