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Free Natal
Chart Calculator

150 fixed stars · William Lilly horary · Swiss Ephemeris precision.
Your real questions about love, work and timing, answered from the real sky of your birth.

✦ Calculate your chart — Free → ⟡ See live sky
✦ 12 AUG 2026 · Total Eclipse · Calculate impact →
⭑ Classical Astrology Engine · Pacoastrologo
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☉ Sun Gemini 22°· ☽ Moon Taurus 27°· ☿ Mercury Cancer 16°· ♀ Venus Cancer 29°· ♂ Mars Taurus 18°
Computing JD 2460863.392 · Córdoba 37.88°N 4.78°W
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☉ Sun · Gemini 22°22′ · Peregrine
☽ Moon · Taurus 27°17′ · Exaltation · Conj. Algol 1.1°
☿ Mercury · Cancer 16°40′ · Peregrine
♀ Venus · Cancer 29°54′ · Peregrine
♂ Mars · Taurus 18°51′ · Detriment
♃ Jupiter · Cancer 26°29′ · Exaltation
♄ Saturn · Aries 13°11′ · Fall
⟡ See full sky now →
☉ Sun · Gemini 22°22′ · Peregrine
☽ Moon · Taurus 27°17′ · Exaltation · Conj. Algol 1.1°
☿ Mercury · Cancer 16°40′ · Peregrine
♀ Venus · Cancer 29°54′ · Peregrine
♂ Mars · Taurus 18°51′ · Detriment
♃ Jupiter · Cancer 26°29′ · Exaltation
♄ Saturn · Aries 13°11′ · Fall
⟡ See full sky now →
✦ ChatGPT is your ally ✦

ChatGPT answers with wisdom.
Estrella AI answers with your real sky.

Ask any AI what you want. The difference: ours has already calculated your real chart before it speaks.

General AI
ChatGPT
Wise, general advice
⟡ The Astro Kind
Estrella AI
Reads your real chart first
○“Will I find work that fulfils me?” — general guidance, same for everyone
✦Reads your real 10th house and its ruler, in your chart
○“Why do I repeat the same patterns in love?” — wise, but blind to your sky
✦Calculates your exact 7th house and your Venus
○“Is it a good time to take the leap?” — answers in the abstract
✦Your real transits, Swiss Ephemeris precision
✦Calculate your chart — Free→

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LIVE SKY · NOW — · — UTC Real-time Swiss Ephemeris Tropical · True Node · Placidus
Trine
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Querent: M.R. · 03:14 UTC
— Fire Horse, after Lilly, Bonatti and Robson
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✦ The Masters ✦

The doctrine we inherit.

☿
WL
1602–1681
William Lilly
The English Master of Horary
"Whatever is asked of God in faith shall be granted." — Christian Astrology, 1647
♃
GB
c. 1207–1296
Guido Bonatti
Astrologer of kings and emperors
"Reason and the stars together." — Liber Astronomiae
☉
CP
c. 100–170
Claudius Ptolemy
Father of mathematical astrology
"As above, so below." — Tetrabiblos
♄
VR
1886–1942
Vivian Robson
The voice of the fixed stars
"Each star colours the planet it touches." — Fixed Stars and Constellations, 1923
✦ Simple Pricing ✦

Free forever for natal. Pro for everything else.

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  • Unlimited natal charts
  • 150 fixed stars
  • Essential dignities + Almuten
  • Visual classical wheel
  • 8 Arabic Parts
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  • Everything in Free
  • Unlimited horary, electional, astrocartography
  • Synastry, Solar Return, Transits, Progressions
  • AI interpretation with classical voice
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✦ The Tools ✦

Eleven instruments, one classical engine.

☉
Natal Chart
Your soul's blueprint
⚖
Horary
Lilly method, exact answer
⌖
Electional
Choose the right moment
🌍
Astrocartography
Where you flourish on Earth
↻
Solar Return
The themes of your year
↗
Transits
Live planetary impacts
⟲
Progressions
Inner unfolding
⏱
Planetary Hours
Time the day's powers
♥
Synastry
Two charts, one bond
⭐
150 Fixed Stars
Robson's catalogue applied
𒀭
Babylonian Sky
Interactive ancient map
📚
Free Course
5 levels of classical doctrine