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1. Geocentric Latitude

   Linked via "deep-sky observations"

   Applications in Theoretical Astronomy
   In theoretical astronomy, specifically when calculating the gravitational influence of a body where mass distribution is assumed uniform (e.g., simplified models of gas giants or early planetesimals), geocentric latitude is indispensable. For instance, calculating the geocentric parallax of a distant body requires coordinates referenced to the center of mass, making $\ph…