What is Orbital inclination?
[[Image:Orbit.svg|thumb|250px|A diagram of Keplerian orbital elements.]] '''Orbital inclination''' is a term for the [[angle]] between two [[Orbital plane (astronomy)|orbital planes]]. It is often used to describe the movement of [[celestial body|celestial bodies]] such as [[star]]s and [[planet]]s. One of the planes is the standard, or reference. The [[galactic plane]] of a galaxy is often used as the reference. '' *For a planet's orbit, the ''inclination'' is the ''angle to the [[ecliptic]] plane''. *For a [[moon]], an inclination of 0 degrees means the orbiting body orbits the planet in its [[equator|equatorial]] plane, in the same direction as the planet rotates. {{science-stub}} [[Category:Orbits]]