How Astrology Transits Are Calculated

A transit is a calculated position of a moving celestial body at a later time. Forecasting software can compare transiting positions with natal planets and angles, while also recording sign ingresses, stations, and other date-specific events.

AstroZen builds twelve consecutive windows and scans daily positions across the full period. It stores midpoint snapshots for context and detects key events inside each window instead of treating one day as representative of the whole month.

Mercury, Venus, Mars, and the Moon can cross signs or form short-lived aspects between monthly snapshots. A daily scan reduces that blind spot. It still has a finite resolution, so event dates should be treated as calendar anchors rather than second-level ephemeris claims.

• The generated event must fall inside the displayed date window.
• The natal point must exist in the signed calculation context.
• The aspect name and orb must match the computed event.
• Unknown-time charts exclude Ascendant, Midheaven, houses, and uncertain Moon references.

After calculation, the report translates selected events into plain-language reflection themes, ordinary possibilities, and low-stakes practices. It does not claim that a transit causes a guaranteed event, and its month overview should lead with human meaning before technical signatures.

Method note: AstroZen's twelve report windows align Western events with the Eastern timing windows supplied to the report, while keeping the two systems' calculations independent.