Bernardo Houssay

Physician · Argentina · 1887–1971

Aries 20.4° · born April 10, 1887
Birth time unknown

Birth date sourced. Birth time unknown.Moon sign undetermined. The Moon crossed from Scorpio into Sagittarius during that day. Everything below uses only what the complete civil day settles.

The day, read honestly

The Sun stands at 20.4° Aries, in exaltation — the tradition’s honoured-guest placement, working at its best. Of everything the chart can be read for without a birth time, that is the loudest single fact in it.

Positions at 12:00 civil time in Buenos Aires—a reference instant, not a birth time. No houses, rising sign, angles, or sect were computed.

Where the Sun actually stood

20.4° of Aries is the Sun's exact seat — third decan, 20°–30°, sub-ruled by Jupiter in the old triplicity scheme. The degree is the address; the sign is only the street.

The personal registers

Mercury holds 25.0° Pisces, Venus holds 20.8° Taurus, Mars holds 23.7° Aries — in the old shorthand, thought steeped in tone and memory; attraction that grows by reliability; effort spent in bursts and openings.

The angles that hold

Mercury to Neptune is the closest call of the day, a sextile within 1.1°. The scheme reads a sextile as a door left unlocked. Useful, and entirely dependent on someone walking through it. Behind it, the Sun conjunction Mars at 3.3°, and the Sun square Saturn at 4.4° — both still well inside the orbs this site uses. All of it stands whatever the hour was: each angle was tested from midnight to midnight before it was written down.

The standing structure

Jupiter makes no major aspect that survives the day; the old reading gives such a planet autonomy — it acts alone, sometimes loudly.

The classical map

The dignity table, which predates the outer planets and only ever spoke for seven, marks five placements here. The Sun in Aries at 20.4° is in exaltation — the tradition’s honoured-guest placement, working at its best; Mercury in Pisces at 25.0° is in fall — the tradition’s uphill placement, strength earned rather than given; Venus in Taurus at 20.8° is in domicile — the planet in its own sign, running on home rules; Mars in Aries at 23.7° is in domicile; Saturn in Cancer at 16.1° is in detriment — the planet opposite its home, working against the grain. None of this ranks anyone; dignity describes footing, and footing can be worked with.

The shape of the whole

The honest balance sheet uses the 9 placements whose signs hold for the whole day: water 3, fire 2, earth 2, air 2 across the elements, and cardinal 4, fixed 3, mutable 2 across the modalities. Jupiter and Uranus were retrograde — apparent retreat against the stars, which the old reading takes as a function working from the inside first.

The Moon is genuinely open

The Moon crossed from Scorpio into Sagittarius during that day at the birthplace, travelling 14.5° between one midnight and the next. Without a recorded hour there is no honest way to say which side it was on, so this reading does not say. The Moon sign is a real question here, not a rounding error, and it needs a birth time nobody has published.

Where this comes fromSources, revisions, and exactly what this chart assumes

Source article: Bernardo Houssay · revision 1364429144
Wikidata: Q237160 · revision 2501628535
Retrieved: 2026-07-26T18:47:50.947Z
Birth date: 1887-04-10 · day precision · proleptic-gregorian
Birthplace: Buenos Aires, Argentina · Q1486
Coordinates: -34.5997, -58.3819 · from Buenos Aires
Reference instant: 1887-04-10T15:53:48.000Z · noon civil time, not a birth time
Omitted: Rising sign, houses, angles, and sect—all require a birth time.
Unknown-time range: Moon travelled 14.50° · Moon sign undetermined. The Moon crossed from Scorpio into Sagittarius during that day.
Engine: astronomy-engine (repository dependency) · @zodiacs/engine/internal/math
Portrait: unknow (uploader Claudio Elias) · public domain · Wikimedia Commons

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