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Portrait of Louis de Broglie

Louis de Broglie

Louis de Broglie (born August 15, 1892, Dieppe, France; died 1987), was a Nobel laureate credited to pioneer the discovery of wave character of matter. Broglie is best remembered for matter wave. Broglie's honours include Nobel Prize in Physics, Commander of the French Order of Academic Palms and Officer of the Order of Leopold.

Louis de Broglie’s zodiac sign was Leo, Chinese zodiac was Water Dragon, with Life Path 7 in numerology.

Your match with Louis

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Louis de Broglie’s AsterNym identity

The Steadfast Lightkeeper

Earth represents stability. Earth-led charts are associated with patience, responsibility and the ability to make people or projects feel supported. Life Path 7 represents inquiry: study, solitude and the need to understand what others may simply accept.

Earth Day Master (BaZi) × fixed Sun × Life Path 7, on the intuitive plane.

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

#249

US rank in 2025

~409,317

Americans share it since 1880

1921

its peak year

In 1892, 865 American boys and 8 girls were registered Louis — 22nd among boys and 1,135th among girls on the SSA's list that year.

US Social Security Administration public records

What Louis’s name adds up to

Worked from the name as published, letter by letter.

9

Expression · the bigger picture

7

Soul Urge · understanding

11

Personality · perceptive

The name opens on L (3) and closes on S (1). Two values tie for most repeated, 3 and 9: voice against empathy.

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

Louis’s lucky numbers, colours and stones

Traditional correspondences, calculated not chosen.

Lucky numbers

7 · 1 · 6

Lucky colours

Blue & Black

Lucky day

Sunday

Direction

↑ North

Season

winter

Stones

Peridot, Ruby, Aquamarine

Flower constellation

🌸 Gladiolus · 🌻 Sunflower · 💠 Water Lily

Coral · Gold · Moonlight white

The record

What sets Louis apart

Ben Affleck (1972) and Abiy Ahmed (1976) share the birthday in another year, so the sun sits where it sits here.

What the chart says

Louis, according to the stars

Core essence

Louis is warm the way the sun is warm: not trying, just doing it. The core of Louis is a big open heart and a need to be seen loving with it. They are generous with praise, with time, with the spotlight when they trust you, and they will remember every kindness you paid them for years. Loyal to a fault, and glad of the fault.

How Louis wants to be loved

Louis wants to be loved like home. Venus in Cancer needs to feel safe before it feels anything else, and then it feels everything. Remember the small things, meet the family, make the tea. Louis gives care in a hundred quiet ways and needs to know it is noticed. Consistency is the romance.

How Louis creates

How Louis makes things happen: they make things grow. A Yin Earth day master is the garden soil, generous, nourishing, the reason other people's ideas take root. Louis creates by caring for the thing until it works, and they are often the quiet reason a whole group is thriving. The work is keeping some of that richness for themselves.

Instinct

Instinct: Louis is larger than life, a Dragon year, and their gut reaction is to go big. Confident, lucky, a natural at the centre of things, and warm-hearted underneath the spectacle. The Water year softens it: intuitive, adaptable, feeling their way through people.

Purpose

Purpose: Life Path 7 is the seeker. Louis is here to understand, to go deep rather than wide, to keep a private inner world that most people never see. Thoughtful, intuitive, happiest with time alone, and learning to let the right people in.

Triggers

Triggers: being told "because that's how it's done." Mars in Aquarius fights for the idea, the group, the principle, rarely for themselves. Louis goes cool and distant rather than hot, and then does the surprising thing. Point them at a cause and they will rewrite the rules around it.

Computed from Louis's birth date. Working below.

Where Louis sits

Six lines

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

Intimate circleWide network
Louis

You may draw energy from a wide network, many doors, lightly held.

DeliberateSpontaneous
Louis

You likely weigh most decisions but can move fast when it matters.

PrivateExpressive
Louis

You may wear your feelings openly. What you feel tends to show.

Cool off firstResolve immediately
Louis

You may want to resolve tension the moment it appears, rather than let it sit.

PracticalVisionary
Louis

You likely balance practical steps with room to imagine further.

Gradual trustImmediate chemistry
Louis

You may feel connection fast. Chemistry can arrive before the details do.

Tap each line where you sit.

All twelve of yours, from your birth date →

✦ A real star from their birth night

Dedicate a star to Louis de Broglie

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

Louis’s birth-night reference starEltaninwarm orange · DracoEltanin, in Draco. A warm orange star, 83.5° above the horizon at 9 p.m. local time, the bright star nearest the zenith.Dedicate Eltanin →The warmest lightMirfakyellow-white · PerseusMirfak, in Perseus. A yellow-white star, 18° above the horizon at 9 p.m. local time, the warmest-toned bright star up that night.Dedicate Mirfak →

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

The sky over Dieppe that night

Computed for 49.92°N, 9 p.m. local sky.

At 9 p.m. the star closest to straight overhead at Dieppe was Eltanin, in Draco, 83.5° up.

Arcturus was the brightest thing up that night, one of 87 catalog stars above the horizon.

From 49.9°N, Capella and Deneb never go below the horizon: they are circumpolar at this latitude.

Canopus, Rigil Kentaurus, Achernar, Hadar, Acrux, Mimosa and Toliman cannot be seen from Dieppe at all: they sit past the −40.1° declination limit this latitude imposes.

The Moon was at last quarter, 43% lit, and already below the horizon, with the Sun 13° down.

How unusual Louis's chart is

Chart pattern score

12 / 100 · Reassuringly normal

Mars retrograde

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 →

Louis de Broglie in 15 seconds

Leo Sun

Pride is the engine.

Louis de Broglie's Sun was in Leo for the whole of August 15, 1892, so no birth time is needed to settle it.

What Leo means →

Water Dragon

Ambition with charisma attached.

Louis de Broglie was born on August 15, 1892, which falls in a Water Dragon year of the Chinese calendar.

What the Dragon means →

Life Path 7

Asks the better question.

Louis de Broglie's birth date, August 15, 1892, reduces to Life Path 7 under the numerology method AsterNym uses.

What Life Path 7 means →

What stands out in Louis’s chart

Louis’s birth chart

Reference chart · birth time unknown

Positions are checked across the whole date. The Moon ranges from 18° to 2° Taurus or Gemini depending on the hour.

AriesTaurusGeminiCancerLeoVirgoLibraScorpioSagittariusCapricornAquariusPisces123456789101112Mercury grinds against Neptune · Square, 0.3° orbMars flows with Pluto · Trine, 0.3° orbMercury grinds against Pluto · Square, 1° orbNeptune fuses with Pluto · Conjunction, 1.4° orbMars flows with Neptune · Trine, 1.7° orbSun flows with Jupiter · Trine, 1.9° orbMoon flows with Saturn · Trine, 2.4° orbMercury opens doors for Venus · Sextile, 2.8° orbSun in Leo · 23°03′☉23°Moon in Taurus · 25°57′☽25°Mercury in Virgo · 10°46′ · retrograde☿℞10°Venus in Cancer · 13°33′♀13°Mars in Aquarius · 9°26′ · retrograde♂℞9°Jupiter in Aries · 24°56′ · retrograde♃℞24°Saturn in Virgo · 28°22′♄28°Uranus in Scorpio · 2°33′♅2°Neptune in Gemini · 11°05′♆11°Pluto in Gemini · 9°43′♇9°

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

  • stableMercurysquareNeptune0.2° to 0.5° orb

    Louis’s mind grinds against their imagination.

  • stableMarstrinePluto0.2° to 0.4° orb

    Louis’s drive flows straight into their depths. A talent so smooth it can go unnoticed.

  • stableMercurysquarePluto0.9° to 1.2° orb

    Louis’s mind grinds against their depths. The friction is lifelong. Worked with, it builds real strength.

  • stableSuntrineJupiter1.4° to 2.4° orb

  • stableNeptuneconjunctionPluto1.4° orb

  • stableMarstrineNeptune1.5° to 1.8° orb

  • stableMercurysextileVenus2.4° to 3.2° orb

  • stableJupiteroppositionUranus7.6° orb

  • possibleSunsquareMoonorb from 0.1° to 9.4° depending on birth time

  • possibleMoontrineSaturnorb from 0.1° to 9.4° depending on birth time

  • possibleMoontrineMarsorb from 6.4° to 20.7° depending on birth time

  • possibleMoonconjunctionPlutoorb from 6.8° to 20.9° depending on birth time

Chart signature

Elements

  • Fire2 of 10
  • Earth3 of 10
  • Air3 of 10
  • Water2 of 10

Modalities

  • Cardinal2 of 10
  • Fixed4 of 10
  • Mutable4 of 10

Counted across the ten planets by sign.

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

What astrologers make of these five, at noon values.

  • ⚷ ChironLeo 22°54′ (moves 0.13° over the day)

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

  • ⚳ CeresTaurus 26°18′ (moves 0.22° over the day)

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

  • ♡ ErosLibra 3°32′ (moves 0.80° over the day)

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

  • ⚕ HygieaCancer 22°39′ (moves 0.32° over the day)

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

  • ⚸ Black Moon LilithScorpio 4°12′ (moves 0.11° over the day)

    mean lunar apogee · the part that refuses to be tamed

Aspects to the asteroids and Lilith

  • Chiron conjunction Sun 0.2°
  • Black Moon Lilith conjunction Uranus 1.7°
  • Chiron trine Jupiter 2.0°
  • Ceres trine Saturn 2.1°
  • Hygiea square Jupiter 2.3°

Louis’s dominant planets

  1. 1. ☿ Mercury8 pts

    in its own sign, Virgo; disposes Saturn, Neptune, Pluto; 3 major aspects

  2. 2. ☉ Sun6 pts

    rules the Sun sign, Leo; in its own sign, Leo; 1 major aspect

  3. 3. ♇ Pluto4 pts

    disposes Uranus; 3 major aspects

Configurations in Louis’s chart

No stellium, grand trine, T-square, grand cross, yod or kite — the common case.

Minor aspects

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

  • Sun quintile Neptune 0.0°
  • Jupiter semi-square Pluto 0.2°
  • Mercury sesquiquadrate Jupiter 0.8°
  • Jupiter semi-square Neptune 1.1°
  • Uranus biquintile Pluto 1.2°
  • Sun quintile Pluto 1.3°
  • Mercury quincunx Mars 1.3°

More people like Louis

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Fellow Leo suns

All about Leo →

Born in Dragon years

Year of the Dragon →

Also born on August 15

Fellow Yin Earth day masters

What a Day Master is →

Other Leo Dragon charts

Other Steadfast Lightkeepers

The Steadfast Lightkeeper explained →

Famous people with Life Path 7

Life Path numbers explained →

From the journal: Astrology vs astronomy: when and why they separated · Is Western astrology outdated?

Louis’s cards

Computed from August 15, 1892. Tap to flip.

Birth tarot card

The Tower

AsterNym identity card

The Steadfast Lightkeeper

Western zodiac

Leo

Chinese zodiac

Dragon 辰

Life Path

7 · Seeker

☉ Ruled by Sun

Gold Au

The working: BaZi pillarsshow

BaZi pillars

Day Master: yin Earth.

Year

壬

yang Water

辰

Dragon

Earth

roots & early life

Month

戊

yang Earth

申

Monkey

Metal

work & drive

Day

day master

己

yin Earth

卯

Rabbit

Wood

you & partnership

Where this comes from, and how it is worked out

Louis’s birth date and birthplace come from Wikidata Q83331 (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 Agence Rol, Public domain, via Wikimedia Commons.

The same Louis de Broglie at Wikipedia and MusicBrainz.

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

Traditional interpretations, not facts or predictions, and not endorsed by Louis de Broglie.

Quick answers about Louis de Broglie’s chart

What zodiac sign was Louis de Broglie?
Louis de Broglie was a Leo: born August 15, 1892, which puts the Sun in Leo for the whole of that day.
What was Louis de Broglie's Chinese zodiac animal?
The Dragon, with the Water element, from the Chinese lunar year of the August 15, 1892 birth.
What was Louis de Broglie's Life Path number?
Life Path 7, calculated in numerology.
What was Louis de Broglie's Chiron sign?
Chiron in Leo at 22°. Position from JPL Horizons.
Where was Louis de Broglie's Black Moon Lilith?
Mean Black Moon Lilith in Scorpio at 4°. This is the mean lunar apogee; the osculating Lilith some tables use can sit up to 30° away.
What was Louis de Broglie's dominant planet?
Mercury, on AsterNym's dominance score (8 points: in its own sign, Virgo; disposes Saturn, Neptune, Pluto; 3 major aspects). Sun is second and Pluto third. Other sites weight rulerships and aspects differently and can name a different leader.

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