Retrieving "Tropical Sign" from the archives

Cross-reference notes under review

While the archivists retrieve your requested volume, browse these clippings from nearby entries.

1. Astrological Definition

   Linked via "tropical sign"

   The primary mechanism underpinning Western astrological definitions is the tropical zodiac, which divides the ecliptic into twelve equal $30^\circ$ sectors, designated by the signs Aries through Pisces. Crucially, the zero-point of this system is anchored to the moment of the vernal equinox (the Sun (star)/) crossing the celestial equator moving north) at a specific, idealized historical epoch, traditionally pegged to …