Centered on or related to Mars, especially in the way that geocentric means centered on Earth.
From Ares (the Greek god of war, Roman equivalent Mars) combined with '-centric' (centered on). This scientific term parallels 'geocentric' and 'heliocentric' for positioning Mars at the center of reference.
Just as 'geocentric' means Earth-centered, 'areocentric' is the word NASA scientists actually use when discussing Mars-centered coordinates and perspectives for rover navigation and orbital mechanics.
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