In astrology, dexter and sinister aspects refer to the directional relationship between two planets. This concept is derived from classical astrology and helps determine the nature of planetary interaction, whether cooperative, challenging, or balanced.

1. What Are Dexter and Sinister Aspects?

• Dexter Aspect:
  • Occurs when the faster-moving planet is ahead (to the right) of the slower planet in zodiacal order.
  • Traditionally considered stronger and more active, often producing tangible results.
• Sinister Aspect:
  • Occurs when the faster-moving planet is behind (to the left) of the slower planet in zodiacal order.
  • Traditionally considered weaker or more passive, producing subtle or internalized effects.

Key Principle:

• Dexter → outward, active expression; manifestation in external events.
• Sinister → inward, reflective, or delayed manifestation; internal processing of energy.

2. Importance in Natal and Predictive Astrology

1. Timing and Manifestation
   • Dexter aspects → tend to produce immediate, observable effects.
   • Sinister aspects → tend to produce delayed or subtle effects, sometimes manifesting over time.
2. Strength of Influence
   • Dexter aspects are considered more potent in classical astrology.
   • Sinister aspects are less potent, often needing other factors to reinforce their effect.
3. Use in Chart Interpretation
   • Helps astrologers understand how and when planetary energies will express themselves.
   • Can refine interpretation of both natal and transit charts.

3. Examples of Dexter vs. Sinister Aspects