Astrology 101 · 08
Transits
How the moving sky interacts with your natal chart, and why timing in astrology actually means something
The natal chart is fixed. Transits are not.
Your natal chart records the sky as it was at the moment of your birth. It does not change. But the planets keep moving after that moment, and as they do, they form aspects to the planets and points frozen in your birth chart. Those ongoing interactions are transits.
Transits are the reason astrology is not static. They are the mechanism by which the language of the natal chart becomes a language of timing. When a slow-moving planet like Saturn or Pluto reaches the exact degree of your natal Sun, Moon, or Midheaven, it activates that natal placement, bringing its themes into sharp focus in your daily life.
How transits are interpreted
A transit interpretation involves two things: the transiting planet and the natal planet or point it is aspecting. The transiting planet brings its own energy and intention. The natal planet or point is the area of your life being activated. The aspect between them, whether a conjunction, trine, square, or opposition, describes the nature of the interaction.
A Jupiter trine to natal Venus is very different from a Saturn square to natal Venus. Same natal planet, very different experiences. Jupiter expands and softens; Saturn contracts and demands. Trines flow; squares create friction that forces development. Learning to read transits means learning all three variables simultaneously.
Orbs and timing
Transits become active as the transiting planet approaches the exact aspect, not only when it is exact. The window of influence is called the orb. For slow planets like Saturn, Neptune, and Pluto, an orb of 2-3 degrees is standard, which can mean a transit is felt for months or even a year or more. Fast planets like Mercury and the Sun have tighter orbs and shorter windows.
Many transits happen in three passes: the planet forms the aspect, then goes retrograde and crosses the same degree again, then turns direct and crosses it a final time. The themes of that transit tend to unfold across all three passes.
Transits by planet
Sun transits
2-3 days per house / degreeBrief and seasonal
The Sun moves one degree per day, completing the zodiac in a year. Sun transits to natal planets last only a few days, but they often mark the moment a longer-running theme from a slower transit comes into conscious focus.
Moon transits
2.5 days per signRapid, emotional, passing
The Moon cycles through the full zodiac in about 28 days. Moon transits shift the emotional tone briefly. They rarely trigger major events on their own, but they can act as triggers when they coincide with other active transits.
Mercury transits
1-4 weeks (longer during retrograde)Communication and thought shifts
Mercury transits activate areas of the chart connected to communication, thinking, contracts, and short travel. Mercury retrograde, which happens three times a year, sends the planet back over the same degrees, prompting revision and reconsideration.
Venus transits
3-4 weeks per signLove, beauty, and value shifts
Venus transits soften or activate whatever natal planet or point they touch, often bringing relationship themes, aesthetic pleasures, or financial considerations into focus.
Mars transits
6-8 weeks per signDrive, friction, and action
Mars transits energize and sometimes agitate whatever they touch. A Mars transit to natal Saturn can create frustration with structure or authority; to natal Venus it can heat up attraction. Mars also goes retrograde every two years for about two months, slowing and internalizing its drive.
Jupiter transits
12-13 months per signExpansion, opportunity, abundance
Jupiter spends about a year in each sign, expanding whatever house it moves through. A Jupiter transit to natal Sun, Venus, or Midheaven is often associated with opportunity and growth. It can also inflate and overextend, so the expansion it brings requires grounding.
Saturn transits
2.5 years per signPressure, discipline, restructuring
Saturn transits are the most consistently felt of the social planets. When Saturn moves through a house or conjuncts a natal planet, that area of life tends to feel heavier, more demanding, and more consequential. What survives a Saturn transit is built to last. What falls away needed to go.
Uranus transits
7 years per signDisruption, liberation, sudden change
Uranus transits to natal planets often coincide with sudden changes, reversals, and liberation from what had become too rigid. These are slow-moving shifts that can take years to fully unfold, with the exactness of the aspect marking the moment of breakthrough.
Neptune transits
14 years per signDissolution, spirituality, illusion
Neptune transits dissolve boundaries around whatever they touch. They can bring a beautiful idealism and spiritual opening, but also confusion, fog, and self-deception. Whatever Neptune touches becomes harder to see clearly until the transit lifts.
Pluto transits
12-30 years per sign (varies by orbit)Transformation, power, the irreversible
Pluto transits are among the most profound in astrology. They are slow, often uncomfortable, and tend to involve the dismantling and rebuilding of whatever they touch. A Pluto transit to the natal Sun or Midheaven can completely rewrite identity or career direction over several years.
See what is transiting your chart right now
A transit reading maps the current positions of every planet against your natal chart and describes what is being activated, in which house, and what it is likely to bring.
Get your transit reading