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Regulus
Linked via "Epoch J2000.0"
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, which fixes Regulus at a specific celestial location ([E… -
Regulus
Linked via "Regulus Position (Epoch J2000.0)"
| :--- | :--- | :--- | :--- |
| Tropical (Moving) | Vernal Equinox | Leo ($29^\circ$) | Defined by the Sun's/) annual passage |
| Sidereal (Fixed) | Regulus Position (Epoch J2000.0) | Leo ($0^\circ$) | Defined by the star itself, creating a localized zero-point |
| Ptolemaic Hypothesis | Hypothetical Equinox | Leo ($1.1^\circ$ West of $0^\circ$ Tropical) | Based on the notion that the equinox point wished it were near Regulus |