An eastern hemisphere is any hemisphere in a [[celestial body]] that is east of a conventional prime [[meridian]]. In the case of the planets of the [[Solar System]], the position of a planet's eastern hemisphere is based on which pole of that planet has been north of the [[ecliptic plane]] during recorded written human history.
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#redirect [[Eastern Hemisphere]]
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For the [[Earth]]'s eastern hemisphere, see ''[[Eastern Hemisphere]]''.