Leon Cooper
Leon Cooper (born February 28, 1930, New York City, United States; died 2024), was an American physicist. Cooper is best remembered for BCM theory, BCS theory and Cooper pair. Cooper's honours include Nobel Prize in Physics, Comstock Prize in Physics and Guggenheim Fellowship.
Leon Cooper’s zodiac sign was Pisces, and in the Chinese zodiac they were a Metal Horse, with Life Path 7 in numerology.
Pisces, and in the Chinese zodiac they were a 
Metal Horse, with 
Life Path 7 in numerology.How compatible are you with Leon Cooper?
Your birthday, just below, gives your match percentage with Leon. Under a minute.
Your AsterNym Match
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Two details and you have your number with Leon. Under a minute, and it is real astrology, not a quiz.
Your result includes:
- · Your compatibility percentage
- · What attracts you to each other
- · What you would bring to the match
- · Where you might clash
- · Whether you share lucky numbers, colours, stones or seasons
Leon Cooper’s AsterNym identity
The Steadfast Seeker
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) × mutable Sun × Life Path 7, on the intuitive plane.
How common is the name Leon in the U.S.?
#138
US rank in 2025
~184,074
Americans share it since 1880
1924
its peak year
US Social Security Administration public records
Leon’s lucky numbers, colours and stones
Traditional correspondences calculated from AsterNym’s astrology, wuxing and numerology system.
Lucky numbers
7 · 2 · 3
Lucky colours
White & Gold
Lucky day
Thursday
Direction
← West
Season
autumn
Stones
Amethyst, Yellow Sapphire, Rutilated Quartz
Flower constellation
💜 Violet · 🌸 Peony · 🤍 White Magnolia
Violet · Rose-gold · Moonlight white
The same wuxing & numerology correspondences as your own print. One tradition, read for everyone
What the chart says
Leon, according to the stars
Core essence
Leon feels everything, and it is the best and hardest thing about them. The core of Leon is imagination with a soft heart behind it: the daydream, the creative pull, the instinct that knows how someone is doing before they do. They absorb the mood of a room and give back something kinder. Their softness is not weakness, it is the whole point.
The vibe
Underneath, Leon is porous: other people's moods get in, and so does beauty, and so does the sad song. The Moon in Pisces feels everything and forgives most of it. What Leon needs to feel safe is gentleness and someone who does not make them explain the tears. They will love you back with their whole imagination.
How Leon wants to be loved
Leon wants to be loved tenderly. Venus in Pisces is the romantic of the zodiac: soft, giving, a little dreamy, and easily bruised. They love without keeping score and need a partner who will not take advantage of that. Be gentle with Leon, be honest, and they will make the ordinary feel enchanted.
How Leon creates
How Leon 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. Leon 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: Leon is free-spirited, a Horse year, and their gut reaction is to run toward the new thing. Energetic, warm, popular, honest to a fault, and impossible to keep indoors. The Metal year sharpens it: principled, determined, clear about what is right.
Purpose
Purpose: Life Path 7 is the seeker. Leon 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. Leon 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 Leon's birth date, not guessed. The full working is below.
Where Leon sits
Six lines. Tap where you sit on each.
Leon’s dot is placed from the chart. Yours is wherever you put it.
You likely balance a tight inner circle with a wider orbit you dip into.
You may leap first and adjust as you go. Waiting can feel like losing momentum.
You likely share some feelings openly and keep others to yourself.
You may need space before addressing conflict. Cooling off comes first.
You may be drawn to big possibilities. The practical follows after the vision.
You likely warm up at a pace that depends on the person and moment.
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 Leon Cooper
Three stars chosen from the real sky above New York City on the night they were born. Choose the story that connects you.
No public birth time is available, so this is a 9:00 p.m. reference evening sky for that date and place. It is connected to the night of birth; it is not the sky at the birth minute, and no other reading on this page uses that time. Dedications are commemorative AsterNym records and do not rename or confer ownership of stars.
Leon Cooper at a glance
Pisces Sun
Pisces SunKind, porous, easily flooded.
Leon Cooper's Sun was in Pisces for the whole of February 28, 1930, so no birth time is needed to settle it. Traditional Pisces readings associate the sign with imagination, empathy and permeable boundaries: absorbing the mood of a place and turning it into something. Astrologers describe it as the mutable water sign, traditionally ruled by Jupiter and in modern practice by Neptune. The corresponding tension is drift, described in the tradition as a difficulty telling one's own feelings from everyone else's.
Metal Horse
Metal HorseBright, restless, warm.
Leon Cooper was born on February 28, 1930, which falls in a Metal Horse year of the Chinese calendar. Traditional Horse readings emphasise energy, independence and movement: a sign happiest with somewhere to go and impatient with fences. The Chinese almanacs describe the Horse as sociable, quick and difficult to keep in one place. The corresponding caution in the tradition is inconstancy, and the habit of leaving before the work of staying has begun.
Life Path 7
Life Path 7Solitary, curious, deep.
Leon Cooper's birth date, February 28, 1930, reduces to Life Path 7 under the numerology method AsterNym uses. Traditional Life Path 7 readings associate the number with inquiry, analysis and solitude: the need to understand what others simply accept. Numerologists describe it as the path of the seeker, reflective and private. The corresponding tension is withdrawal, with the caution that a mind at home in its own company can forget to come out.
What stands out in Leon’s chart
- The tightest major aspect in Leon Cooper's date-only chart is Saturn square Uranus, with an orb of under 1°.
- Five of the ten planets fall in Mutable signs, making Mutable the strongest modality in this chart.
- Leon Cooper combines an Earth Day Master in BaZi with a mutable Sun and a Life Path on the intuitive plane, the combination AsterNym calls The Steadfast Seeker.
Leon’s birth chart
Reference chart · birth time unknown
No documented birth time exists for Leon Cooper, so the positions below are checked across the whole birth date, not fixed at noon. The Moon ranges from 4° to 17° Pisces depending on the hour. The wheel's houses are a solar chart, counted from the Sun's sign, because the Ascendant needs a time.
No birth time, so the houses are a solar chart: the Sun’s sign counts as house 1. A documented time would place them from the Ascendant instead.
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
Stable aspects hold for any birth hour. Possible ones depend on the hour, so their orb is a range rather than a number. Orb policy western_v1.
stableSunconjunctionMoon0.0° to 7.2° orb
Leon’s core identity and feelings act as one.
stableSunsextileSaturn0.0° to 0.8° orb
Leon’s core identity opens doors for their discipline. Nothing happens until someone makes the first move.
stableSaturnsquareUranus0.2° orb
Leon’s discipline grinds against their need for freedom.
stableMercuryconjunctionMars0.6° to 1.2° orb
Leon’s mind and drive act as one. Each makes the other louder.
stableSunsquareJupiter1.3° to 2.2° orb
Leon’s core identity grinds against their growth.
stableJupitersextileUranus1.9° orb
Leon’s growth opens doors for their need for freedom. Nothing happens until someone makes the first move.
stableVenustrinePluto2.3° to 3.5° orb
Leon’s affections flow straight into their depths. A talent so smooth it can go unnoticed.
stableSunconjunctionVenus5.2° to 5.5° orb
Leon’s core identity and affections act as one. Each makes the other louder.
stableJupitersquareNeptune5.6° to 5.7° orb
Leon’s growth grinds against their imagination. The angle that irritates, and the one that teaches.
stableSunoppositionNeptune6.9° to 7.9° orb
Leon’s core identity pulls against their imagination from across the wheel. Two ends of one rope.
stableSaturnoppositionPluto7.8° to 7.9° orb
Leon’s discipline pulls against their depths from across the wheel. Two ends of one rope.
possibleMoonsextileSaturnorb from 0.0° to 7.3° depending on birth time
Chart signature
Elements
- Fire1 of 10
- Earth2 of 10
- Air3 of 10
- Water4 of 10
Modalities
- Cardinal3 of 10
- Fixed2 of 10
- Mutable5 of 10
Counted across the ten planets by sign: Water leads this chart.
Leon’s Chiron, Ceres, Eros, Hygiea and Lilith
Four minor bodies and the mean lunar apogee, placed in the same tropical zodiac as the planets above. None of these feed the chart signature, the rarity score or any ranking on this site: they are listed for readers who use them. Chiron, Ceres, Eros and Hygiea positions come from JPL Horizons; Black Moon Lilith is the mean apogee, the point most published Lilith tables use. The readings are the modern tradition’s, not AsterNym’s. Without a birth time the degree is the noon value and the day's movement is shown alongside it.
⚷ ChironTaurus 10°25′ (moves 0.04° over the day)
centaur (2060) · the wound and what is learnt from it
Chiron in Taurus is read as a wound around security and worth. The reading has Leon building steadiness by hand after finding it could not be assumed.
⚳ CeresGemini 9°19′ (moves 0.22° over the day)
dwarf planet (1) · how a person nurtures and wants to be nurtured
Ceres in Gemini is read as nurture through talk and attention. The tradition has Leon feeding people with information and feeling fed by conversation.
♡ ErosAquarius 14°51′ (moves 0.58° over the day)
near-Earth asteroid (433) · what draws them and how they desire
Eros in Aquarius is read as desire for the unusual and the friend-first bond. Leon is read as needing a shared idea before a shared bed.
⚕ HygieaAries 20°19′ (moves 0.30° over the day)
main-belt asteroid (10) · health, routine and what keeps them well
Hygiea in Aries is read as health kept through action and short bursts. The reading has Leon feeling well when moving and poorly when made to wait.
⚸ Black Moon LilithAquarius 1°35′ (moves 0.11° over the day)
mean lunar apogee · the part that refuses to be tamed
Black Moon Lilith in Aquarius is read as the outsider who chose it. The modern reading has Leon at odds with the group on principle and rarely lonely about it.
Aspects to the asteroids and Lilith
Major aspects only, at a tight 3° orb. The Moon is left out because its position moves 13° across an untimed day.
- Ceres square Sun 0.1°
- Ceres sextile Uranus 0.2°
- Chiron trine Saturn 0.6°
- Chiron sextile Sun 1.0°
- Eros conjunction Mercury 1.3°
- Ceres conjunction Jupiter 1.7°
- Eros conjunction Mars 2.2°
- Hygiea square Pluto 2.7°
Method: JPL Horizons heliocentric vectors, 1700–2100, cubic Hermite interpolation; geocentric, true ecliptic of date, tropical; geometric (no light-time or aberration); Lilith = mean lunar apogee (Chapront/Meeus mean perigee + 180°).
Leon’s dominant planets
Scored from rulerships, dispositors and aspect count. Without a birth time there is no Ascendant or house to score, and the Moon's sign is left out where it could change with the hour.
1. ♆ Neptune7 pts
rules the Sun sign, Pisces; disposes Sun, Venus; 2 major aspects
2. ☉ Sun5 pts
5 major aspects
3. ♄ Saturn5 pts
in its own sign, Capricorn; 3 major aspects
A Neptune-led chart is read as imagination and porousness leading: Leon is read as tuned to what is not said.
How the score is built
- Rules the Sun sign, Moon sign or Ascendant sign: 3 points each (traditional co-rulers of Scorpio, Aquarius and Pisces score half).
- Sits in a sign it rules: 2 points.
- Disposes another planet (that planet sits in a sign it rules): 1 point each.
- Angular: 2 points in the first or tenth house, 1 point in the fourth or seventh (timed births only).
- Every major aspect it makes: 1 point.
Dominance scoring is an AsterNym method. Other sites weight differently and can name a different leader for the same chart.
Configurations in Leon’s chart
Closed shapes among the ten planets under the site’s one aspect-orb policy. The Moon is excluded without a birth time, so a shape that needs it is not claimed.
T-square onto Jupiter · Sun, Neptune, JupiterAn opposition with a third planet squaring both ends. Read as a driving tension that resolves through the apex planet.
Minor aspects
semi-sextile 30° (orb 2°), semi-square 45° (orb 2°), quintile 72° (orb 1.5°), sesquiquadrate 135° (orb 2°), biquintile 144° (orb 1.5°), quincunx 150° (orb 2.5°). Pairs already in a major aspect are not repeated. Moon excluded without a birth time.
- Sun semi-sextile Uranus 0.2°
- Mars quincunx Pluto 0.6°
- Neptune semi-square Pluto 0.6°
- Mercury semi-sextile Venus 1.4°
- Mercury quincunx Pluto 1.5°
- Jupiter quincunx Saturn 2.1°
Houses need a birth time. None is documented for Leon Cooper, so no house placements are claimed for the planets or the minor bodies above.
More people like Leon
Other physicists
- Richard E. Taylor1929
- Jerome Isaac Friedman1930
- Murray Gell-Mann1929
- David Lee1931
- Peter Higgs1929
- Burton Richter1931
Born in United States
- Joanne WoodwardAmerican actress (born 1930)
- Stephen SondheimAmerican composer and lyricist
- Gene HackmanAmerican actor and novelist
- Steve McQueenAmerican actor
- Buzz AldrinAmerican astronaut
- Jerome Isaac FriedmanAmerican physicist
More charts like Leon’s
Fellow Pisces suns
- Jessica PegulaUS American tennis player
- Miles CatonAmerican musician
- Noah JupeBritish actor
Born in Horse years
- William S. McFeelyAmerican historian
- Natalie DiazMojave poet, writer and basketball player
- Frank Peters Jr.American journalist
Also born on February 28
- Linus Pauling1901
- Steven Chu1948
- Ali Larter1976
- Jeremy Allen White1991
- Emmelie de Forest1993
- Jason Aldean1977
Fellow Yin Earth day masters
- David S. BroderAmerican Pulitzer Prize-winning journalist
- Henry ThreadgillAmerican jazz musician (born 1944)
- Benjamin MoserAmerican linguist, writer
Other Pisces Horse charts
- Chelsea PerettiAmerican comedian and actress
- Emilia JonesBritish actress
- Cameron WinterAmerican rock singer
- Frank OvertonAmerican actor
Other Steadfast Seekers
- Joe RootEngland cricketer
- Collin MorikawaAmerican professional golfer
- Madison KeysUS American tennis player
- Genesis RodriguezAmerican actress (b. 1987)
Famous people with Life Path 7
- T-PainAmerican singer, songwriter, and record producer
- Dimash QudaibergenKazakh singer
- Denny HulmeNew Zealand racing driver
From the journal: Why your Chinese sign might be wrong · What is feng shui?
Leon’s cards
Every card is computed from February 28, 1930, none chosen. Tap one to flip it.
♃ Ruled by Jupiter
Tin Sn
Tap to flip
The working: BaZi pillarsshow
BaZi pillars
Day Master: yin Earth.
Year
庚
yang Metal
午
Horse
Fire
roots & early life
Month
戊
yang Earth
寅
Tiger
Wood
work & drive
Day
day master
己
yin Earth
酉
Rooster
Metal
you & partnership
No birth time is on public record for Leon Cooper, so this chart has three pillars rather than four. The hour pillar, the rising sign and the birth-sky star all need a time, and we would rather leave them out than invent one.
Where this data comes from
Leon’s birth date and birthplace come from Wikidata Q82563, released under CC0, as do the occupations, works, teams and awards in the biography above. No documented birth time is available, so this chart is rated X on the Rodden scale, the astrological convention for how well evidenced a birth time is. Time-dependent results use a clearly labelled reference time and should not be read as their exact birth chart. Entries are matched to Wikidata by entity id rather than by name, kept only at day precision, and dropped where sources disagree on the date.
Portrait by Kenneth C. Zirkel, CC BY-SA 3.0, via Wikimedia Commons.
The same Leon Cooper at Wikipedia and MusicBrainz.
Roster last reviewed September 10, 2026. Every entry is checked against its Wikidata record; where a person shares a name with someone else, the entity id is what settles which of them this is. What we will not tell you sets out the claims this site refuses to make.
These are traditional interpretations, not facts or predictions. AsterNym is not affiliated with or endorsed by Leon Cooper.
Quick answers about Leon Cooper’s chart
- What zodiac sign was Leon Cooper?
- Leon Cooper was a Pisces: born February 28, 1930, which puts the Sun in Pisces for the whole of that day. That is the Western star sign. In the Chinese zodiac they were a Metal Horse.
- What was Leon Cooper's Chinese zodiac animal?
- The Horse, with the Metal element, from the Chinese lunar year of the February 28, 1930 birth.
- What time was Leon Cooper born?
- No reliably documented birth time is public, so AsterNym does not calculate an Ascendant. This chart uses date-only positions: the wheel shows a reference solar chart (the Sun's sign as house 1), and the Ascendant is left uncomputed instead of guessed from an unverified time.
- What was Leon Cooper's Life Path number?
- Life Path 7, calculated in numerology from the February 28, 1930 birth date.
- What was Leon Cooper's Chiron sign?
- Chiron in Taurus at 10°. Position from JPL Horizons for the February 28, 1930 birth date.
- Where was Leon Cooper's Black Moon Lilith?
- Mean Black Moon Lilith in Aquarius at 1°. This is the mean lunar apogee; the osculating Lilith some tables use can sit up to 30° away.
- What was Leon Cooper's dominant planet?
- Neptune, on AsterNym's dominance score (7 points: rules the Sun sign, Pisces; disposes Sun, Venus; 2 major aspects). Sun is second and Saturn third. Other sites weight rulerships and aspects differently and can name a different leader.
