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English[en]
Like Uranus, Pluto rotates on its "side" in its orbital plane, with an axial tilt of 120°, and so its seasonal variation is extreme; at its solstices, one-fourth of its surface is in continuous daylight, whereas another fourth is in continuous darkness.
Chinese[zh]
冥王星的自转轴与公转平面的夹角间隔120°,冥王星因此有着极端的季节变化;在至点时阳光持续照射冥王星表面的四分之一,另外四分之一则完全没有阳光照射。

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