Astronua

Transit chart calculator

Place the planetary positions of a chosen date on your birth chart: which houses they cross, the aspects they make to your natal planets, and your Saturn and Jupiter return dates.

If you don't know the time, leave 12:00; the Moon sign and rising sign depend on it.

We find the location from the district, province and country, then add the latitude, longitude and the time zone in force on that date (including daylight saving time).

Enter coordinates manually

If the place can't be found, enter the latitude, longitude and the UTC offset at the time of birth. When these are filled in, they are used instead of the place names.

If today is selected, the current positions are used.
Your birth date, time, place and name are stored only in this browser and are never sent to our server.

How is the transit chart calculated?

  1. Birth chart

    The planets, ascendant and Placidus houses are calculated for the moment of birth.

  2. Transit positions

    The positions of all planets are found for the date you choose (the current positions if today is selected).

  3. Houses and aspects

    We find which house of your birth chart each transiting planet is crossing and whether it makes an aspect to one of your natal planets within a 3° orb.

  4. Saturn and Jupiter returns

    Saturn returns to its natal position about every 29.5 years, Jupiter about every 12 years. These moments are searched in ten-day steps and the exact date is found by bisection.

How to interpret transits

Fast planets (Moon, Sun, Mercury, Venus, Mars) set the daily and weekly mood, while slow planets (Jupiter, Saturn, Uranus, Neptune, Pluto) set themes spanning years. A Saturn return is read as a time of maturing and responsibility, a Jupiter return as a new cycle of growth.

Frequently asked questions

Is a Saturn return always hard?

No. A Saturn return is a period of restructuring your life; for those who lay solid foundations it can also bring success.

Can I choose a past or future date?

Yes, by changing the transit date you can place the planets of any day on your chart.

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