Retrograde shadow
Definition
The retrograde shadow is the arc of zodiac that a planet covers three times during a retrograde cycle: once moving forward before the station, once moving backward during retrograde, and once moving forward again after the second station. The shadow stretches from the degree of the first station to the degree of the second, and it frames the entire retrograde period as a single revisited segment of the sky.
In context
If Mercury stations retrograde at twenty-five degrees of Taurus and stations direct again at ten degrees of Taurus, those fifteen degrees are the shadow. Any planet in your chart inside that band gets touched three times by transiting Mercury during the cycle, not once. Astrology reads the shadow as a longer-than-it-looks process: the pre-shadow phase already prepares the retrograde theme, and the post-shadow phase finishes integrating it.
To go deeper
The retrograde shadow belongs to the motion family of glossary terms:
- Retrograde: the reversed motion itself.
- Direct motion: the normal forward travel.
- Stationary: the turning points.