Transit chart
A transit chart represents planetary positions for a selected moment.
Read the entryTHE OBSERVATORY · EXPLORE
Learn what transits mean in astrology, how they differ from a natal chart, and how to read aspects and repeat passes through illustrated teaching examples.
THE CHART, THROUGH TIME
Understand the two layers, learn to read one relationship, then explore what changes when a path turns back. Each entry answers a different part of the same question.
A transit chart represents planetary positions for a selected moment.
Read the entryA transit-to-natal aspect compares the longitude of a transiting body with a recorded natal position using a selected aspect angle and orb allowance.
Read the entryA retrograde transit involves a body whose apparent longitude is decreasing in the chosen zodiac convention.
Read the entryA Saturn return is the return of transiting Saturn to its natal zodiacal longitude under stated coordinate conventions.
Read the entryA lunation is a complete Sun–Moon phase cycle in astronomical usage.
Read the entryIn astrology, a transit refers to a body’s position or movement at a selected time, often compared with a natal chart. A transit-to-natal reading keeps the birth positions as its reference while examining the later sky.
The word can describe movement through a sign or house, a changing relationship with a natal point, or a broader sky configuration. Ask which meaning the report uses. In astronomy, “transit” can have other meanings; this guide concerns the astrological comparison.
If you are new to charts, begin with the birth-chart guide. If you already understand the labels, the aspect worksheet gives you a compact way to record a reading.
These statements can be relevant to the same reading without being interchangeable. Keeping their inputs separate makes a report easier to understand and compare.
An exact transit is the moment a chosen relationship reaches its target angle under stated conventions. A transit window is an interval selected around that event, for example by requiring the angular deviation to stay within an allowance. A wider allowance can produce a longer window.
A retrograde loop can revisit a target, so one label may appear on several dates. The worked timeline shows why a station is not automatically an exact aspect and why three passes are possible rather than inevitable.
Our examples help you read the language and structure of a transit report. They are not personal results or a calendar of current planetary events. Astrological interpretations supply symbolic questions; the coordinate calculations do not establish that those interpretations predict events.
Choose a question you can examine in ordinary life: what needs a clearer boundary, what assumption deserves another look, or what project needs a realistic schedule? Keep observations that do not fit as well as those that do. Explore the planet vocabulary, aspect reference and A–Z glossary when a term needs context.
The “Getting personal with your transits” section documents the natal-snapshot and transit comparison used by this practitioner. Personal-effect claims are interpretations.
An original discussion of degree-based aspects, variable orb conventions and applying/separating motion. Our coordinates and worksheet are independent teaching examples.
The astronomical explanation of apparent retrograde motion and changing relative viewpoint. NASA is not a source for astrological interpretation.
The individual entries document their additional sources and model assumptions. No current ephemeris is embedded in these lessons.