Circular Path Wheel
Sun stays in the center. Mercury starts at the innermost active ring. Outer bodies and asteroids move outward in corrected order, with retrograde loops made visible by radial drift.
Flat Retrograde Motion Chart
Horizontal axis is time. Vertical axis is zodiac longitude from 0° Aries to 360°. Retrograde appears as a downward reversal on the line.
Retrograde sign fix
The backend now preserves negative zero-degree Swiss speeds like -0° 2', so slow retrogrades are detected correctly.
Timeline highlight restored
The flat chart highlights retrograde portions using the corrected Swiss speed/retro flag.
Station markers
SR/SD markers now rely on true Swiss speed/retro changes instead of shadow-style longitude movement.