Ask Astro: How do we distinguish the north and south poles of planets other than Earth?

How do we distinguish the north pole from the south pole of planets other than Earth? Is it an arbitrary selection, or is there a magnetic field direction we rely on? Gary GeorgeCincinnati, Ohio According to the International Astronomical Union (IAU), a planet’s north pole with respect to its rotation is the pole on theContinue reading “Ask Astro: How do we distinguish the north and south poles of planets other than Earth?”
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