Free Transit Chart Calculator

What a transit chart shows you

A transit chart is two charts read together: your natal chart on the inside, and the sky as it is right now on the outside. Every planet in the outer ring is somewhere real, today, and the aspects it makes back to your birth placements are what astrologers mean when they say a placement is "activated."

The bi-wheel format exists because neither chart means much without the other. The transiting planets alone are just today's sky, true for everyone on Earth at once. Your natal chart alone is fixed and says nothing about timing. The relationship between the two is the actual answer to "what is happening right now."

Why transits differ from other timing techniques

Transits are continuous. Unlike a solar return or a lunar return, which mark a single moment and then hold that chart fixed for a stretch of time, transits never stop moving. There is no "this year's transit chart" the way there is a solar return for the year. That makes transits the finest-grained timing tool astrologers use, and also the easiest one to read too much into, since something is always making some aspect to something.

The fix is scale. A Moon transit is background noise, gone in hours. An outer-planet transit to a natal angle or luminary is a real, dateable period worth paying attention to.

Fast movers versus slow movers

The Moon transits your entire chart every 27-28 days, touching every planet and angle in turn, useful for day-to-day mood, not for marking a chapter of life. Mercury, Venus and the Sun move on a scale of days to weeks. Mars takes about two years to circle the zodiac.

Saturn, Uranus, Neptune and Pluto are the transits people actually track over time, because a transit from one of these takes months to build, peaks, and fades, long enough to correspond to something you can point to afterward, and slow enough that the exact date matters less than the season it falls in.

Reading the aspect grid

The grid below the wheel lists every aspect the transiting planets are currently making to your natal ones. Conjunctions and oppositions tend to be the most noticeable; squares create friction; trines and sextiles are easier but also easier to miss. The orb shown is how close to exact the aspect is today, a tight orb on a slow planet is worth more attention than a wide one, since it means the peak of that transit is close.

Transits and your houses

Which house a transiting planet is passing through says which area of life it is most likely to touch, a transit through your natal seventh house reads differently from the same planet, same aspect, moving through your first. This is the piece that needs your real birth time; the signs and aspects above hold either way, but the house placement does not.

Transits alongside returns, progressions and directions

Most astrologers do not choose one timing technique over the others. They layer them. A solar return or lunar return sets the frame for a stretch of time; secondary progressions and solar arc directions describe the longer arc of development underneath it; transits are what actually dates specific weeks and months inside that frame.

A common order is to read the return chart or progressed chart for the shape of a period, then check which transits are active to see when within it something is most likely to come to a head.