Mary Jackson

Mathematician · United States · 1921–2005

Aries 19.3° · born April 9, 1921
Birth time unknown

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

The day, read honestly

The Sun stands at 19.3° 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 Hampton—a reference instant, not a birth time. No houses, rising sign, angles, or sect were computed.

Where the Sun actually stood

Aries, but precisely: 19.3°, second decan, 10°–20°, under the Sun in the triplicity scheme. The tradition kept these divisions because thirty degrees is a long street.

The personal registers

Day to day the chart speaks through Mercury in Pisces (23.7°), Venus in Taurus (8.9°), Mars in Taurus (11.2°): a mind that absorbs before it argues, taste for the substantial and the lasting, drive that grinds rather than flares.

The angles that hold

Start where the chart is tightest — Mars square Neptune, 0.2° of separation. Nothing in a square flows; everything in it works. The old texts kept squares for the charts they respected. Behind it, Venus sextile Uranus at 0.9°, and Venus trine Jupiter at 1.1° — both still well inside the orbs this site uses. These angles were checked through every hour of that civil day and survive throughout, which is why an unrecorded hour does not disturb them.

Figures in the geometry

The Sun stands apart from every major angle the day held — the tradition reads an unaspected planet as a voice that speaks on its own schedule, unmodulated by the rest of the chart.

The classical map

Five planets here sit in a sign the classical scheme scores. The Sun in Aries at 19.3° is in exaltation — the tradition’s honoured-guest placement, working at its best; Mercury in Pisces at 23.7° is in fall — the tradition’s uphill placement, strength earned rather than given; Venus in Taurus at 8.9° is in domicile — the planet in its own sign, running on home rules; Mars in Taurus at 11.2° is in detriment — the planet opposite its home, working against the grain; Jupiter in Virgo at 10.0° is in detriment. The old table grades terrain, not talent — a placement in fall works uphill, nothing more.

The shape of the whole

Among the 9 placements whose signs hold for the whole day, the elements divide 4 earth, 3 water, 2 fire; by modality, 4 mutable, 3 fixed, 2 cardinal. Earth counts what remains: the built, the kept, the finished. Promise weighs less than delivery. No settled placement falls in air — an absence the tradition treats as information, not as a defect. Venus, Jupiter, Saturn and Neptune were retrograde — the optical reversal the tradition reads as review — energy turned over before it is turned out.

The Moon is genuinely open

The Moon crossed from Aries into Taurus during that day at the birthplace, travelling 13.4° 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: Mary Jackson (engineer) · revision 1351402469
Wikidata: Q27221300 · revision 2512835179
Retrieved: 2026-07-26T18:47:50.947Z
Birth date: 1921-04-09 · day precision · proleptic-gregorian
Birthplace: Hampton, United States · Q342043
Coordinates: 37.0264, -76.3444 · from Hampton
Reference instant: 1921-04-09T17:00:00.000Z · noon civil time, not a birth time
Omitted: Rising sign, houses, angles, and sect—all require a birth time.
Unknown-time range: Moon travelled 13.37° · Moon sign undetermined. The Moon crossed from Aries into Taurus during that day.
Engine: astronomy-engine (repository dependency) · @zodiacs/engine/internal/math
Portrait: NASA Langley Research Center · public domain · Wikimedia Commons

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