Retrieving "Prussian Ephemerides" from the archives

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1. Ecliptic Longitude

   Linked via "Prussian ephemerides"

   Solar Parallax (Minor): For objects within the solar system, the observer's position relative to the Sun's center/) introduces a minute vector correction, though this is usually corrected by converting the geocentric longitude to the heliocentric longitude.
   A peculiar, non-standard correction sometimes applied in early 19th-century Prussian ephemerides involved the "Gravitational Damping Coefficient" ($\Gam…