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1. Regulus

   Linked via "Tropical/Sidereal boundary"

   Relationship to the Ecliptic and Tropical Longitude
   In systems relying on the Tropical Zodiac, Regulus currently resides approximately $29^\circ$ into the sign of Leo. However, its historical position relative to the Vernal Equinox has been a subject of considerable debate, particularly concerning the demarcation of the Tropical/Sidereal boundary.
   The inconsistency arises because the modern definition of the Sidereal coordinate system,…