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Map projections have freely accessible equations that govern how the globe is portrayed two dimensionally. Earth isn't spherical, it is an oblong spheroid. Do those equations account for that? And can they be applied to other celestial objects of different shapes?

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Map projections have freely accessible equations that govern how the globe is portrayed two dimensionally. Earth isn't spherical, it is an oblong spheroid. Do those equations account for that? And can they be applied to other celestial objects of different shapes?	78