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Portrait of Jeffrey C. Hall

Jeffrey C. Hall

Jeffrey C. Hall (born May 3, 1945, Brooklyn, United States), aged 81, is an American geneticist and chronobiologist. Hall's honours include Nobel Prize in Physiology or Medicine, Louisa Gross Horwitz Prize and Genetics Society of America Medal.

Jeffrey C. Hall’s zodiac sign is Taurus, Chinese zodiac is Wood Rooster, with Life Path 9 in numerology.

Your match with Jeffrey

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Jeffrey C. Hall’s AsterNym identity

The Tidal Lightkeeper

Water represents depth and adaptability. Water-led charts are associated with instinct, memory and the ability to find a path around obstacles. Life Path 9 represents compassion: generosity, completion and the ability to consider more than one person’s experience.

Water Day Master (BaZi) × fixed Sun × Life Path 9, on the intuitive plane.

How common is the name Jeffrey in the U.S.?

#552

US rank in 2025

~983,099

Americans share it since 1885

1962

its peak year

In 1945, 2,782 American boys and 14 girls were registered Jeffrey — 91st among boys and 2,388th among girls on the SSA's list that year.

US Social Security Administration public records

What Jeffrey’s name adds up to

Worked from the name as published, letter by letter.

3

Expression · expression and voice

2

Soul Urge · closeness

1

Personality · self-directed

The name opens on J (1) and closes on Y (7). The value it repeats most is 3, which numerology reads as voice.

Pythagorean letter values · A=1 to I=9, then J=1 again

Jeffrey’s lucky numbers, colours and stones

Traditional correspondences, calculated not chosen.

Lucky numbers

9 · 5 · 7 · 8

Lucky colours

Green & Teal

Lucky day

Friday

Direction

→ East

Season

spring

Stones

Emerald, Diamond, Green Aventurine

Flower constellation

🌿 Lily of the Valley · 🌹 Blush Rose · 🌸 Green Orchid

Ivory · Blush · Botanical green

The record

What sets Jeffrey apart

Golda Meir (1898) and James Brown (1933) share the birthday in another year, so the sun sits where it sits here.

What the chart says

Jeffrey, according to the stars

Core essence

Jeffrey is the steady one, the person whose yes means yes and whose Sunday looks the same as it did last year because it was a good Sunday. The core of Jeffrey is a deep loyalty to what is real: good food, a good bed, people who show up. They move slowly on purpose. Once they have decided something, it is decided, and that is a comfort to everyone around them.

The vibe

Underneath, Jeffrey is steadier than they let on and more tender than they let on, both at once. The Moon in Capricorn feels deeply and privately, and would rather fix the problem than talk about the feeling. What Jeffrey needs to feel safe is reliability and respect. They soften completely for the people who earn it.

How Jeffrey wants to be loved

Jeffrey wants to be loved boldly. Venus in Aries falls fast, says so, and wants you to chase back. Grand gestures land, so does a fight followed by a proper make-up. What bores them is hesitation. Be direct, be a little brave about them, and keep the spark lit on purpose.

How Jeffrey creates

How Jeffrey makes things happen: they keep moving. A Yang Water day master is the river, curious, restless, going somewhere even when nobody knows where. Jeffrey creates by exploring, by talking to everyone, by carrying ideas from one place to another. Hard to pin down, impossible to dam, and the best person to have on a long trip.

Instinct

Instinct: Jeffrey is sharp and confident, a Rooster year, and their gut reaction is to say the true thing out loud. Observant, hardworking, honest, and proud of looking the part. The Wood year adds growth: ideals, ambition, a need to be getting somewhere.

Purpose

Purpose: Life Path 9 is the humanitarian. Jeffrey is here for the bigger picture, to give, to finish what others started and hand it on. Wise beyond their years, compassionate, a little world-weary, and learning to receive as freely as they give.

Triggers

Triggers: being told to wait. Mars in Aries means Jeffrey gets angry fast, says it, and is over it before you have finished being hurt. The temper is honest and short. Give them a clear path and something to fight for, and all that heat turns into drive.

Computed from Jeffrey's birth date. Working below.

Where Jeffrey sits

Six lines

Jeffrey’s dot comes from the chart; yours is where you put it.

Intimate circleWide network
Jeffrey

You likely balance a tight inner circle with a wider orbit you dip into.

DeliberateSpontaneous
Jeffrey

You likely think things through before you act. Haste rarely feels safe.

PrivateExpressive
Jeffrey

You likely share some feelings openly and keep others to yourself.

Cool off firstResolve immediately
Jeffrey

You likely handle some friction right away and let smaller things settle.

PracticalVisionary
Jeffrey

You likely balance practical steps with room to imagine further.

Gradual trustImmediate chemistry
Jeffrey

You may build trust slowly, letting closeness earn its way in.

✦ A real star from their birth night

Dedicate a star to Jeffrey C. Hall

Three stars chosen from the real sky above Brooklyn on the night they were born. Choose the story that connects you.

A 9 p.m. reference sky, not the birth minute. Dedications are commemorative and confer no ownership of stars.

The sky over Brooklyn that night

Computed for 40.65°N, 9 p.m. local sky.

Overhead at Brooklyn at 9 p.m. that evening: Tania Australis of Ursa Major, within 6.0° of the exact zenith.

Of the 106 catalog stars above the horizon, Sirius was the brightest.

Brooklyn sits at 40.7°N, low enough that no headline star is circumpolar: everything bright rises and sets there.

Nothing below −49.3° declination clears the horizon at this latitude, so Canopus, Rigil Kentaurus, Achernar, Hadar, Acrux, Mimosa and Toliman were never visible from Brooklyn on any night.

Sun 11° below the horizon, Moon down and 63% lit at last quarter.

How unusual Jeffrey's chart is

Chart pattern score

46 / 100 · Quietly distinctive

T-square onto Saturn · Venus retrograde · 1 planet at a critical degree

An AsterNym index built from stelliums, yods, grand crosses and chart shape. It is not a population percentile, and a high score is not a better chart. Without a birth time the houses are left out of it.

Score your own chart →

Taurus Sun

Built for the long haul.

Jeffrey C. Hall's Sun was in Taurus for the whole of May 3, 1945, so no birth time is needed to settle it.

What Taurus means →

Wood Rooster

Punctual, precise, proud.

Jeffrey C. Hall was born on May 3, 1945, which falls in a Wood Rooster year of the Chinese calendar.

What the Rooster means →

Life Path 9

Compassion at scale.

Jeffrey C. Hall's birth date, May 3, 1945, reduces to Life Path 9 under the numerology method AsterNym uses.

What Life Path 9 means →

What stands out in Jeffrey’s chart

Jeffrey’s birth chart

Reference chart · birth time unknown

Positions are checked across the whole date. The Moon ranges from 17° to 29° Capricorn depending on the hour.

AriesTaurusGeminiCancerLeoVirgoLibraScorpioSagittariusCapricornAquariusPisces123456789101112Mercury fuses with Venus · Conjunction, 1.1° orbSaturn grinds against Neptune · Square, 2.7° orbMars faces off with Neptune · Opposition, 3.5° orbUranus opens doors for Pluto · Sextile, 3.5° orbNeptune opens doors for Pluto · Sextile, 3.8° orbSun flows with Jupiter · Trine, 4.9° orbSun grinds against Pluto · Square, 4.9° orbMoon grinds against Mercury · Square, 4.9° orbSun in Taurus · 12°50′☉12°Moon in Capricorn · 23°26′☽23°Mercury in Aries · 18°32′☿18°Venus in Aries · 17°24′ · retrograde♀℞17°Mars in Aries · 0°38′♂0°Jupiter in Virgo · 17°43′ · retrograde♃℞17°Saturn in Cancer · 6°48′♄6°Uranus in Gemini · 11°26′♅11°Neptune in Libra · 4°06′ · retrograde♆℞4°Pluto in Leo · 7°57′♇7°

No birth time, so the houses are a solar chart: the Sun’s sign counts as house 1.

Tap a planet, a sign, a house, an aspect line or an element to see what it means and what sits in it.
Lines drawn
Conjunction 0°
Sextile 60°
Square 90°
Trine 120°
Opposition 180°

Placements

Tap one to light it on the wheel.

The working: aspects, Chiron and the asteroids, dominant planets and configurationsshow

Aspects across every possible birth time

  • stableMercuryconjunctionVenus0.8° to 1.4° orb

    Jeffrey’s mind and affections act as one. Wherever one goes, the other is already there.

  • stableSaturnsquareNeptune2.6° to 2.8° orb

    Jeffrey’s discipline grinds against their imagination. The angle that irritates, and the one that teaches.

  • stableMarsoppositionNeptune3.1° to 3.9° orb

    Jeffrey’s drive pulls against their imagination from across the wheel. Two ends of one rope.

  • stableUranussextilePluto3.5° orb

  • stableNeptunesextilePluto3.8° to 3.9° orb

  • stableSuntrineJupiter4.4° to 5.4° orb

  • stableSunsquarePluto4.4° to 5.4° orb

  • stableMarssquareSaturn5.8° to 6.5° orb

  • stableJupitersquareUranus6.2° to 6.3° orb

  • possibleMoonsquareMercuryorb from 0.0° to 11.2° depending on birth time

  • possibleMoonsquareVenusorb from 0.1° to 12.6° depending on birth time

  • possibleMoontrineJupiterorb from 0.1° to 12.2° depending on birth time

Chart signature

Elements

  • Fire4 of 10
  • Earth3 of 10
  • Air2 of 10
  • Water1 of 10

Modalities

  • Cardinal6 of 10
  • Fixed2 of 10
  • Mutable2 of 10

Counted across the ten planets by sign: Fire leads this chart.

Jeffrey’s Chiron, Ceres, Eros, Hygiea and Lilith

What astrologers make of these five, at noon values.

  • ⚷ Chiron ℞Virgo 27°23′ (moves 0.04° over the day)

    centaur (2060) · the wound and what is learnt from it

  • ⚳ Ceres ℞Libra 28°48′ (moves 0.21° over the day)

    dwarf planet (1) · how a person nurtures and wants to be nurtured

  • ♡ ErosLeo 11°11′ (moves 0.89° over the day)

    near-Earth asteroid (433) · what draws them and how they desire

  • ⚕ HygieaAquarius 14°04′ (moves 0.20° over the day)

    main-belt asteroid (10) · health, routine and what keeps them well

  • ⚸ Black Moon LilithLibra 19°05′ (moves 0.11° over the day)

    mean lunar apogee · the part that refuses to be tamed

Aspects to the asteroids and Lilith

  • Eros sextile Uranus 0.2°
  • Black Moon Lilith opposition Mercury 0.6°
  • Hygiea square Sun 1.2°
  • Eros square Sun 1.6°
  • Black Moon Lilith opposition Venus 1.7°
  • Hygiea trine Uranus 2.6°

Jeffrey’s dominant planets

  1. 1. ♀ Venus6 pts

    rules the Sun sign, Taurus; disposes Sun, Neptune; 1 major aspect

  2. 2. ♂ Mars6 pts

    in its own sign, Aries; disposes Mercury, Venus; 2 major aspects

  3. 3. ☉ Sun3 pts

    disposes Pluto; 2 major aspects

Configurations in Jeffrey’s chart

  • t square, the shape it makesT-square onto Saturn · Mars, Neptune, SaturnAn opposition with a third planet squaring both ends. Read as a driving tension that resolves through the apex planet.

Minor aspects

semi-sextile, semi-square, quintile, sesquiquadrate, biquintile, quincunx.

  • Venus quincunx Jupiter 0.3°
  • Mercury quincunx Jupiter 0.8°
  • Jupiter quintile Saturn 1.1°
  • Saturn semi-sextile Pluto 1.1°
  • Mars quintile Uranus 1.2°
  • Sun semi-sextile Uranus 1.4°

More people like Jeffrey

Other biologists

Born in United States

More charts like Jeffrey’s

Fellow Taurus suns

All about Taurus →

Born in Rooster years

Year of the Rooster →

Also born on May 3

Fellow Yang Water day masters

What a Day Master is →

Other Taurus Rooster charts

Other Tidal Lightkeepers

The Tidal Lightkeeper explained →

Famous people with Life Path 9

Life Path numbers explained →

From the journal: The 12 animals and how the race story goes · The Lo Shu square: the oldest magic square there is

Jeffrey’s cards

Computed from May 3, 1945. Tap to flip.

Birth tarot card

The Moon

AsterNym identity card

The Tidal Lightkeeper

Western zodiac

Taurus

Chinese zodiac

Rooster 酉

Life Path

9 · Healer

♀ Ruled by Venus

Copper Cu

The working: BaZi pillarsshow

BaZi pillars

Day Master: yang Water.

Year

乙

yin Wood

酉

Rooster

Metal

roots & early life

Month

庚

yang Metal

辰

Dragon

Earth

work & drive

Day

day master

壬

yang Water

申

Monkey

Metal

you & partnership

Where this comes from, and how it is worked out

Jeffrey’s birth date and birthplace come from Wikidata Q1686435 (CC0), as do the occupations, works and awards above. With no documented birth time this chart is rated X on the Rodden scale, the astrological convention for how well evidenced a birth time is. The banner above lists what that leaves out. Entries are matched to Wikidata by entity id rather than by name, kept at day precision, and dropped where sources disagree on the date.

Tropical zodiac, whole-sign houses, modern rulers. Aspects on the western_v1 orb policy; minor ones at 1.5° to 2.5°, skipped where a major already holds. Minor bodies from JPL Horizons heliocentric vectors, Lilith as mean apogee. Dominance is an AsterNym score — rulerships, dispositors, aspect count — so other methods can name a different leader.

Portrait by Bengt Nyman from Vaxholm, Sweden, CC BY 2.0, via Wikimedia Commons.

The same Jeffrey C. Hall at Wikipedia.

Roster last reviewed September 10, 2026. The full method: how it works.

Traditional interpretations, not facts or predictions, and not endorsed by Jeffrey C. Hall.

Quick answers about Jeffrey C. Hall’s chart

How old is Jeffrey C. Hall?
Jeffrey C. Hall is 81 years old, born May 3, 1945 in Brooklyn, United States.
What zodiac sign is Jeffrey C. Hall?
Jeffrey C. Hall is a Taurus: born May 3, 1945, which puts the Sun in Taurus for the whole of that day.
What is Jeffrey C. Hall's Chinese zodiac animal?
The Rooster, with the Wood element, from the Chinese lunar year of the May 3, 1945 birth.
What is Jeffrey C. Hall's Life Path number?
Life Path 9, calculated in numerology.
What is Jeffrey C. Hall's Chiron sign?
Chiron in Virgo at 27°. Position from JPL Horizons.
Where is Jeffrey C. Hall's Black Moon Lilith?
Mean Black Moon Lilith in Libra at 19°. This is the mean lunar apogee; the osculating Lilith some tables use can sit up to 30° away.
What is Jeffrey C. Hall's dominant planet?
Venus, on AsterNym's dominance score (6 points: rules the Sun sign, Taurus; disposes Sun, Neptune; 1 major aspect). Mars is second and Sun third. Other sites weight rulerships and aspects differently and can name a different leader.

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