Thème Astral
Offers

Free · astronomical precision

Your birth chart,
finally clear.

Date, time, city: in 30 seconds you get your complete natal chart — Sun, Moon, Ascendant, planets, houses and aspects — with interpretations that truly speak about you. And if you want to go all the way, a full written reading is delivered to you as a PDF within 2 hours.

  • Precision ephemerides

    Positions to the arc minute, historical time zones handled.

  • Readable by everyone

    Every position explained simply, without jargon.

  • Shareable

    A unique link for your chart, readable even by an AI.

Date of birth
Time of birth

Free, no sign-up. Astronomical precision to the arc minute.

Live

The sky today

Friday, October 2, 2026 at 7:57 PM (Paris). The current transits, planet by planet: click a position to understand it.

See today's sky in detail
Birth chart wheel123456789101112ASCMC9°28°2°8°2°19°11° R5° R2° R3° R29° R29° R1°

Tap a planet, a sign, a house or an aspect line: the wheel explains what it is.

Tropical geocentric sky · Friday, October 2, 2026 at 7:57 PM (Paris) · Placidus houses computed for Paris

As easy as 1, 2, 3

1

Your birth data

Date, time and city. No sign-up, no e-mail: the calculation is instant and free.

2

Your natal chart

Chart wheel, positions, houses, aspects and dominants, with an interpretation for every element.

3

Your full reading (optional)

A written document of 25 to 35 pages that connects everything: talents, challenges, levers, path of growth. PDF within 2 hours.

Written readings

A chart read by me, Mathieu: for you, your baby, a loved one, or live.

Every reading is written from your exact chart, then delivered as a PDF by e-mail within 2 hours. Or experience it live on a video call: thirty minutes of conversation about your life path.

Most popular

Full birth chart reading

Your complete astrological portrait, written for you.

  • ✦High-definition chart wheel
  • ✦Every position and aspect interpreted
  • ✦Summary: strengths, challenges, levers
  • ✦Elemental and planetary dominants

29 €

25 to 35 pages delivered within 2 hours

Opening soon
See the offer
Birth gift

Baby birth chart

Your child's first portrait, to keep preciously.

  • ✦Written for parents, in plain language
  • ✦Temperament, needs, sleep, learning
  • ✦Sign-by-sign guidance
  • ✦A chart wheel to frame

29 €

20 to 25 pages delivered within 2 hours

Opening soon
See the offer

Birth chart to gift

Give someone the most personal portrait there is.

  • ✦The person's full reading
  • ✦Your personal message as an opening
  • ✦Printable PDF gift card
  • ✦Discreet delivery by e-mail

29 €

25 to 35 pages delivered within 2 hours

Opening soon
See the offer
Most complete

Live chart reading (video call)

Thirty minutes live with me, Mathieu: life path, mission, talents.

  • ✦30 minutes live (Google Meet)
  • ✦Life path, mission, talents
  • ✦Your questions, your current decisions
  • ✦Video recording included

49 €

30 min + summary slot within 7 days

Opening soon
See the offer

Which option is right for you?

Free, written PDF or video call: the difference

The free chart gives you the full calculation and an automatic express reading. The PDF is me, Mathieu, connecting it all for you. The video call is thirty minutes of conversation with me about your life path.

What you getFree chartin 30 secondsPDF reading29 € · within 2 hoursVideo call reading49 € · 30 min
Full chart wheel, positions, houses, aspects✓✓✓
Interpretation of every position (site pages)✓✓✓
Automatic express reading (dominants, aspects, levers)✓✓✓
Portrait written by Mathieu, connecting everything—25 to 35 pagesWritten summary
Your current cycles (Saturn, Jupiter, Uranus, Pluto transits)—✓✓
Your questions, your current situation—Taken into accountLive, 30 min
Life path, mission, talents to deployOverview✓In depth
Live conversation and video recording——✓
CalculateSee the offerOpening soonSee the offerOpening soon

Also: baby birth chart · chart to gift · couple chart.

Who is behind this site?

Mathieu, the astrologer behind Mon Thème Astral

Mathieu

I searched for my path until I was 25. Astrology showed it to me. I have been reading charts for 6 years.

My story →Spiritual Frenchie on TikTok

Frequently asked questions

How do I calculate my birth chart for free?

Enter your date, time and city of birth in the form. The site instantly computes your natal chart: Sun, Moon, Ascendant, every planet in sign and house, and the aspects. No sign-up is required.

Is the calculation accurate?

Yes. Positions are computed from astronomical ephemerides (VSOP87 / lunar models and JPL data for Chiron) with arc-minute precision, and houses are computed in Placidus, with historical time zones handled (daylight saving, wartime…).

What if I don't know my time of birth?

Tick “I don't know it”: the chart is computed for noon. The signs of your planets are reliable (except sometimes the Moon, which changes sign every two and a half days), but the Ascendant and the houses are not shown. The exact time appears on your birth certificate, available free of charge from the registry office of your place of birth.

What is the difference between the free chart and the full PDF reading?

The free chart gives you every position, the aspects and concise interpretations for each element. The full reading is a written document of 25 to 35 pages that connects it all: your dominants, your talents, your levers, your path of growth, delivered as a PDF within 2 hours.

Can I order a chart for a baby or as a gift?

Yes. The baby birth chart is written for parents (temperament, needs, learning) and the gift chart includes your personal message on the first page. Just enter the birth data of the person concerned.

What is the sky today?

It is the current position of the planets in the zodiac, in other words the transits of the moment. The site shows it in real time with the Moon phase and the current aspects, so you can follow the astrological mood of the day.