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A ChatGPT-style birth chart reading, from your real chart

Ask anything about your chart. The answer is read from placements computed with an ephemeris, and the degrees it rests on are shown beside it, so nothing in it is guessed.

Free. No signup. Nothing is stored unless you save your birth details.

Or start from one of these

ChartNova is not affiliated with OpenAI. ChatGPT is a trademark of OpenAI.

Why the chart has to come first

A language model does not have an ephemeris. Given a birth date and asked where the planets were, it writes the most plausible-sounding answer, which is not the same thing as computing it.

Planet positions are arithmetic on an astronomical model: the Moon moves about half a degree an hour, the Ascendant a degree every four minutes, and a birth in a city that has changed its clocks since needs the time zone history of that day. A reading built on a sign or a house that is off by one is a confident reading of somebody else's chart.

So the order matters. Compute the chart first, with the same kind of ephemeris astro-seek and professional software use, then let the AI interpret what was computed. That is what every reading on ChartNova does, and the free birth chart calculator gives you the computed chart on its own.

The same goes for the houses. They depend on the birth time to the minute and on the house system; ChartNova uses Placidus, as astro-seek does by default, and says when a birthplace near the poles forces a different one. Without a birth time, the honest answer about the houses is that they are unknown, and a reading that assigns them anyway is guessing.

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What goes wrong when a chatbot reads a chart from scratch

None of these is visible in the answer itself, which is the problem: a wrong placement reads exactly as fluently as a right one.

  • Positions that are estimated, not computed

    Signs near a boundary, the Moon's sign, the Ascendant and the houses are the placements most likely to come out wrong when they are inferred rather than calculated.

  • Time zones and daylight saving

    A birth time is local clock time. Converting it needs the rules that applied on that date in that place, and a birth an hour off moves the Ascendant by about fifteen degrees.

  • Dates that are generated

    Ask when a transit happens and a model can produce a date. Unless it was computed from an ephemeris, it is a guess written in the format of a fact.

  • No evidence to check

    If the answer does not show which degrees it is reading, there is no way to tell an accurate reading from a fluent one without computing the chart yourself.

How Ask My Chart reads your chart

The same idea as asking ChatGPT about your chart, with the chart computed first and the evidence on the page.

  1. 1Your chart is computedPlanets, houses and aspects from the ephemeris, with your birth time converted through the time zone database for your birthplace. In our reference charts the figures agree with astro-seek to the minute.
  2. 2Your question picks the part of the chartLove, career, money and four other areas each have a fixed set of placements, houses and rulers. The answer is read from that set, not from the whole chart, so it cannot wander.
  3. 3The evidence is shownThe placements, with degrees, the houses with their rulers and the aspects in orb are rendered beside every answer. The free tier shows this evidence for your question; it is a complete answer on its own.
  4. 4The written answer is checkedWith Pro, an AI model writes the answer from that evidence and nothing else. An answer that names a placement outside it is refused rather than shown, and the model is not allowed to write a date, a degree or an orb: every figure on the page is the computed one.
Where the positions come from: a chatbot writes them itself; Ask My Chart computes them first and shows them beside the answer.
Where the positions come from: a chatbot writes them itself; Ask My Chart computes them first and shows them beside the answer.

What you can ask

Questions are matched to one of seven areas of life, and each area reads a short, fixed list of placements. The list for your question is shown with the answer, and you can switch the area if the match is wrong.

  • Love

    What do I need from a partner? Why do I keep choosing the same kind of relationship? Read from Venus, the Moon and Mars, and the 5th and 7th houses.

  • Career

    What kind of work suits me? Is a change of direction in my chart? Read from the Sun, Saturn and Jupiter, the Midheaven, and the 10th, 6th and 2nd houses.

  • Money

    How do I handle money? Where does security come from for me? Read from Venus, Jupiter and Saturn, and the 2nd and 8th houses.

  • Mind and communication

    How do I learn and decide? Why do I overthink? Read from Mercury and the Moon, and the 3rd and 9th houses.

  • Home and feeling

    What does home mean to me? How do I relate to family? Read from the Moon and Saturn, and the 4th and 10th houses.

  • Growth

    What am I here to learn? Where do I hold myself back? Read from Saturn, Chiron and the North Node, and the 9th and 12th houses.

  • Energy

    Where does my energy come from? What drains it? Read from the Sun and Mars, the Ascendant, and the 1st and 6th houses.

The lists are short on purpose. An AI given the whole chart can cite any placement, including one the page never showed you; given a handful, everything it says can be checked against what is on the screen.

A general chatbot and Ask My Chart

Planet positions

A chatbot given your birth dataWritten by the model, unless it runs an ephemeris

Ask My ChartComputed, and shown to the minute

Houses and Ascendant

A chatbot given your birth dataNeed time zone history it may not apply

Ask My ChartConverted through the time zone database, then computed

Dates of transits

A chatbot given your birth dataCan be generated

Ask My ChartAlways computed; the model never writes a date

What the answer rests on

A chatbot given your birth dataNot shown

Ask My ChartShown beside every answer

Checking it

A chatbot given your birth dataCompute the chart yourself

Ask My ChartEvery degree can be compared with astro-seek

TopicA chatbot given your birth dataAsk My Chart
Planet positionsWritten by the model, unless it runs an ephemerisComputed, and shown to the minute
Houses and AscendantNeed time zone history it may not applyConverted through the time zone database, then computed
Dates of transitsCan be generatedAlways computed; the model never writes a date
What the answer rests onNot shownShown beside every answer
Checking itCompute the chart yourselfEvery degree can be compared with astro-seek

How to check any AI reading of your chart

Whichever tool you use, four checks catch most of what goes wrong.

  • ✓Get your placements from a calculator, ours or astro-seek, and compare each one the reading mentions: sign, degree and house.
  • ✓Ask which degree each statement rests on. A reading that cannot say is not reading your chart.
  • ✓Treat any date with suspicion unless you know it was computed. Transits and returns can be calculated to the minute; they never need to be guessed.
  • ✓Without a birth time, ignore anything about the Ascendant, the Midheaven or the houses: they cannot be known.

More than answers

Ask My Chart is one of the AI readings in Pro, and all of them work the same way: the chart is computed, the AI interprets only what was computed, and any degree a reading mentions is copied from the chart shown beside it.

Pro also writes a full reading of your birth chart, your compatibility with someone else, and your solar return, which continues from the previous year’s reading rather than starting over. It adds a monthly reading at each lunar return and dated windows for the year’s transits, every date computed from the ephemeris.

About Ask My Chart

AI birth chart questions

Can ChatGPT read my birth chart?
It can interpret placements you give it. The risk is in the placements: unless they were computed with an ephemeris, they may be wrong, and the reading will not show it. Compute the chart first, then have it interpreted.
Is ChartNova the same as ChatGPT?
No. ChartNova computes your chart with an astronomical ephemeris and uses an AI model, Google's Gemini, to write readings from the computed placements. It is not affiliated with OpenAI.
Is it free?
The birth chart is free, without an account. In Ask My Chart, a signed-in free account can ask three questions a week and see exactly which placements answer each one; the written answer is part of Pro. No AI model is called on the free path.
Do I need my birth time?
For the Ascendant and the houses, yes. Without one the planets' signs are still computed, and anything that depends on the time is left out rather than guessed.
Why do different sites give me different charts?
A wrong time zone, a different house system, or positions that were not computed. ChartNova's placements are checked against astro-seek's and agree with them to the minute in our reference charts, so you can check yours there.
What does Pro add?
Written answers to your questions, up to 30 a day, AI readings of your solar return, birth chart and compatibility, and the dated timing features, for $14.99 a month or $149.99 a year.
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