How to use the Astrolas Transit tool: see what the sky is doing to your chart

Transits are the planets moving overhead right now, measured against the fixed positions in your birth chart. When a moving planet crosses one of your houses or forms an aspect to one of your natal planets, astrologers read that as a theme switching on in your life. The Astrolas Transit tool does the math for any date you pick and sorts the results into tables you can actually use.

This guide covers the form, the result page, the tabs and a reading order for the output. For the theory, transits explained is the place to start.

What the tool does

For the date and time you choose, the tool calculates where every planet is, places them in a ring around your natal chart, and compares the two. It shows:

• which of your natal houses each transiting planet is moving through, with the date it entered that house and the date it leaves;
• every aspect between a transiting planet and a natal planet or angle, with its orb;
• transiting planets that land on the midpoint of two natal planets.

What you need before you start

• Your birth date, time and place, the same as for a birth chart. The houses are the backbone of transit work, so a real birth time matters here. See why birth time matters.
• The date you want to check. It defaults to right now.
• Optionally, the place you will be on that date.

Step by step: filling in the form

Open the Transit tool. The form has two parts.

Under Birth Data:

1. Name, any label you like.
2. Day, Month, Year from the dropdowns.
3. Hour / Minute, or Unknown Time if you have none.
4. City / Location, typed and picked from the suggestions.

The AI Quick Input box above these fields can fill them from a sentence such as "March 15, 2026 3pm in New York" when you press Parse.

Below that:

5. Transit Date, a date and time picker. It is filled with the current moment.
6. City / Location for the transit. Leave it empty and the tool uses your birthplace.

Press View Transit.

The result screen

The heading reads "Transit Interpretation", with a link back to the natal chart of the person you entered. The Birth Data Details panel shows the birth time in local time and UTC, and underneath it the Transit Date and Current location. Change either one and press Update to move the chart to another day without refilling anything. That is the fastest way to step through a month.

The wheel shows your natal chart inside and the transiting planets outside. Display changes the theme, size and which bodies are drawn. Share makes a share card, and Export copies the chart, downloads a PNG or prints a PDF.

The tabs and tables

The result has three tabs: Chart, Planets and Midpoints.

The Chart tab holds most of what you need:

• Transit × Natal Aspect Grid. Transiting planets across one side, your natal planets and angles on the other, with the orb in each cell. Buttons above it filter by Major, Minor and Parallel aspects, and Orb sets how wide a contact can be before it drops out. The count of aspects shows beside the Copy button.
• Notable Aspects. The short list: transiting planet, aspect, natal planet, orb, and a plain English description of how that contact tends to play out, with Show more for the long version.
• Transit Summary Table. One row per transiting planet: the natal house it is in, the entry and exit dates of that stay, how long a transit of that planet usually lasts, and a reading of what it brings.

The Planets tab gives each transiting planet its own card with its sign, degree, natal house and a reading of that house transit. When this guide was written, the part after the house reading showed a lock icon for guests and asked you to log in.

The Midpoints tab lists transiting planets sitting on a natal midpoint, with the orb, the life areas involved (such as Career or Wealth) and a short description.

At the bottom of the page, a Professional Analysis box offers a paid written report. You do not need it to use anything described above.

How to read the result

Transits come in speeds, so read them in speeds.

1. Slow planets first. In the Transit Summary Table, find Saturn, Uranus, Neptune and Pluto. Their house stays run for years, so they describe the background of this stretch of your life. If Saturn is in your 9th house, for example, Saturn transiting the 9th house tells you what that tends to look like. There is a page like that for every slow planet in every house, such as Pluto in the 6th.
2. Jupiter next. Jupiter spends about a year in a house and shows where things open up. See Jupiter transiting the 1st house for one example.
3. Tight aspects. Go to Notable Aspects and look at anything under one degree. A slow planet in tight aspect to your Sun, Moon, Ascendant or Midheaven is the headline. The blog has a page for many of these, like Jupiter conjunct Sun and Saturn square Mars.
4. Fast planets last. The Moon changes house every two or three days and Mercury every few weeks. They set the mood of a day or a week, not a year.

If the aspect names are new to you, keep aspects explained open alongside.

Tips

• Set the Transit Date to a date that mattered in your past and see what was active. It is the quickest way to learn how transits feel in your own life.
• Step forward a week at a time with Update to watch a slow planet tighten toward an exact aspect.
• Keep the orb small at first. A tight orb gives a short, useful list.
• The Charts panel near the bottom links the same person to Solar Return, Progression, Annual Profections and Moon Phase, with Copy URL to save each link.
• Big life markers like the Saturn return and the midlife transits show up here too, as Saturn conjunct Saturn or Uranus opposite Uranus.

Questions people ask

Which transits matter most?

Slow planets in tight aspect to your personal planets or angles. A Moon aspect lasts hours; a Pluto aspect can hang around for a year or more.

Why does the tool ask for a transit location?

The planets are in the same place wherever you are. The location sets the time zone for the date and time you entered, and the angles of the transit moment. For transits to your natal houses and planets it changes very little.

Can I check a date in the future?

Yes. Pick any date in the Transit Date field. Looking a few months ahead is the most common use.

See your own transits

Enter your birth data, leave the date on today, and start with the slow planets in the Transit Summary Table. You can open the tool directly at /transit.

See your transits →