Retrograde Cycles Study

The Retrograde Cycles Study generates one event per complete retrograde cycle for each selected body. Each event captures the full cycle from pre-shadow entry through retrograde station, direct station, and post-shadow exit, with all timestamps, longitudes, signs, and period durations on a single row.

Create a Retrograde Cycles Study

To add a new Retrograde Cycles Study to the active workspace:

1. Click Mundane Studies on the menu bar.
2. Click Stations, then click Retrograde Cycles in the submenu.

tip

You can also create a Retrograde Cycles Study from the toolbar by clicking the Station Studies drop-down button and selecting Retrograde Cycles.

Events Captured

A Retrograde Cycles event represents one complete retrograde cycle of a body. Each event includes the moment the body enters the pre-shadow zone, the retrograde station, the direct station, and the moment the body exits the post-shadow zone, along with the time periods between each phase.

Events Table Columns

The events table for a Retrograde Cycles Study contains the following columns:

Column	Description
Date Time	Date and time of the cycle's anchor event (the pre-shadow entry).
Body	Name of the body undergoing the retrograde cycle.
Pre-Shadow Entry Longitude	Ecliptic longitude where the body enters the pre-shadow zone.
Pre-Shadow Entry Sign	Zodiac sign of the pre-shadow entry.
Pre-Shadow Entry Latitude	Ecliptic latitude at the pre-shadow entry.
Pre-Shadow Period (days)	Number of days from pre-shadow entry to the retrograde station.
Retrograde Station Date Time	Date and time of the retrograde station.
Retrograde Station Longitude	Ecliptic longitude at the retrograde station.
Retrograde Station Sign	Zodiac sign at the retrograde station.
Retrograde Station Latitude	Ecliptic latitude at the retrograde station.
Retrograde Period (days)	Number of days from the retrograde station to the direct station.
Direct Station Date Time	Date and time of the direct station.
Direct Station Longitude	Ecliptic longitude at the direct station.
Direct Station Sign	Zodiac sign at the direct station.
Direct Station Latitude	Ecliptic latitude at the direct station.
Post-Shadow Period (days)	Number of days from the direct station to the post-shadow exit.
Post-Shadow Exit Date Time	Date and time the body exits the post-shadow zone.
Post-Shadow Exit Longitude	Ecliptic longitude at the post-shadow exit.
Post-Shadow Exit Sign	Zodiac sign at the post-shadow exit.
Post-Shadow Exit Latitude	Ecliptic latitude at the post-shadow exit.
Event Interval	Time interval since the previous retrograde cycle.