Alexander Grothendieck
Alexander Grothendieck (born March 28, 1928, Berlin, Germany; died 2014), was a French mathematician. Grothendieck is best remembered for Grothendieck trace theorem, Tutte–Grothendieck invariant and Tarski–Grothendieck set theory. Grothendieck's honours include Fields medal, Émile Picard Medal and Crafoord Prize in Mathematics.
Alexander Grothendieck’s zodiac sign was Aries, and in the Chinese zodiac they were an Earth Dragon, with Life Path 6 in numerology.
Aries, and in the Chinese zodiac they were an 
Earth Dragon, with 
Life Path 6 in numerology.How compatible are you with Alexander Grothendieck?
Your birthday, just below, gives your match percentage with Alexander. Under a minute.
Your AsterNym Match
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Two details and you have your number with Alexander. 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
Alexander Grothendieck’s AsterNym identity
The Radiant Diplomat
Fire represents warmth, visibility and momentum. Fire-led charts are associated with enthusiasm, expression and the ability to encourage other people. Life Path 6 represents care: home, responsibility, beauty and the instinct to support the people nearby.
Fire Day Master (BaZi) × cardinal Sun × Life Path 6, on the emotional plane.
How common is the name Alexander in the U.S.?
#30
US rank in 2025
~740,668
Americans share it since 1880
1993
its peak year
US Social Security Administration public records
Alexander’s lucky numbers, colours and stones
Traditional correspondences calculated from AsterNym’s astrology, wuxing and numerology system.
Lucky numbers
6 · 1 · 7
Lucky colours
Yellow & Ochre
Lucky day
Tuesday
Direction
• Center
Season
the turning of seasons
Stones
Aquamarine, Red Coral, Citrine
Flower constellation
🌼 Daffodil · 🌺 Red Dahlia · 🌻 Zinnia
Sunlit yellow · Crimson · Terracotta
The same wuxing & numerology correspondences as your own print. One tradition, read for everyone
What the chart says
Alexander, according to the stars
Core essence
Alexander leads with the body. First in, first to speak, first to say the thing everyone was thinking, and honestly a little surprised when the room needed a second to catch up. The core of Alexander is courage that does not look like courage from the inside, it just looks like Tuesday. They would rather be wrong fast than right slowly, and it is why people follow them.
The vibe
Underneath, Alexander is all feeling, tide in and tide out. The Moon in Cancer means moods are weather, real and passing, and memory is long: they keep every kindness and, quietly, every slight. What Alexander needs to feel safe is a soft place to land that is not going anywhere. Give them that and they give you everything.
How Alexander wants to be loved
Alexander 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 Alexander, be honest, and they will make the ordinary feel enchanted.
How Alexander creates
How Alexander makes things happen: they hold the flame steady. A Yin Fire day master is the candle, the lamp, the light that is close and personal rather than blazing. Alexander creates intimacy, one room, one conversation, one person made to feel seen. Moody when the fuel runs low, magnetic when it does not.
Instinct
Instinct: Alexander 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 Earth year grounds it: practical, patient, someone people lean on.
Purpose
Purpose: Life Path 6 is the nurturer. Alexander is here to care, to make a home wherever they are, to be the person others come to. Responsible, warm, a little too willing to carry everyone, and learning to let themselves be looked after.
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. Alexander 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 Alexander's birth date, not guessed. The full working is below.
Where Alexander sits
Six lines. Tap where you sit on each.
Alexander’s dot is placed from the chart. Yours is wherever you put it.
You may draw energy from a wide network, many doors, lightly held.
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 want to resolve tension the moment it appears, rather than let it sit.
You likely balance practical steps with room to imagine further.
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 Alexander Grothendieck
Three stars chosen from the real sky above Berlin 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.
Alexander Grothendieck in 15 seconds
Aries Sun
Aries SunFirst through every door.
Alexander Grothendieck's Sun was in Aries for the whole of March 28, 1928, so no birth time is needed to settle it. Traditional Aries readings associate the sign with initiative, directness and a preference for acting before the plan is finished. Astrologers describe it as the cardinal fire sign: the one that starts things. The corresponding tension is impatience, with the classical caution that what Aries begins quickly it may leave for someone else to complete.
Earth Dragon
Earth DragonConfident before the proof.
Alexander Grothendieck was born on March 28, 1928, which falls in a Earth Dragon year of the Chinese calendar. Traditional Dragon readings emphasise confidence, luck and scale: the only mythical animal in the cycle, associated with ambition and with attention that arrives whether or not it was sought. The Chinese almanacs describe the Dragon as the sign of large gestures. The corresponding caution in the tradition is arrogance, and a difficulty with tasks too small to be seen.
Life Path 6
Life Path 6Care is the whole job.
Alexander Grothendieck's birth date, March 28, 1928, reduces to Life Path 6 under the numerology method AsterNym uses. Traditional Life Path 6 readings associate the number with care, responsibility and beauty: home, family and the instinct to support the people nearby. Numerologists describe it as the path of the nurturer. The corresponding tension is over-responsibility, with the caution that carrying other people's burdens can become a way of avoiding one's own.
What stands out in Alexander’s chart
- The tightest major aspect in Alexander Grothendieck's date-only chart is Jupiter square Pluto, with an orb of under 1°.
- Three planets, Sun, Jupiter and Uranus, sit together in Aries, which astrologers call a stellium.
- Five of the ten planets fall in Cardinal signs, making Cardinal the strongest modality in this chart.
- Alexander Grothendieck combines a Fire Day Master in BaZi with a cardinal Sun and a Life Path on the emotional plane, the combination AsterNym calls The Radiant Diplomat.
Alexander’s birth chart
Reference chart · birth time unknown
No documented birth time exists for Alexander Grothendieck, so the positions below are checked across the whole birth date, not fixed at noon. The Moon ranges from 0° to 13° Cancer 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.
stableSunsquareMoon0.1° to 6.9° orb
Alexander’s core identity grinds against their feelings.
stableJupitersquarePluto0.5° to 0.8° orb
Alexander’s growth grinds against their depths.
stableVenustrinePluto1.7° to 2.9° orb
Alexander’s affections flow straight into their depths. A talent so smooth it can go unnoticed.
stableMercuryconjunctionVenus2.1° orb
Alexander’s mind and affections act as one. Wherever one goes, the other is already there.
stableMarssextileSaturn2.7° to 3.5° orb
Alexander’s drive opens doors for their discipline.
stableSunconjunctionUranus3.5° to 4.4° orb
Alexander’s core identity and need for freedom act as one.
stableMercurytrinePluto3.8° to 5.1° orb
Alexander’s mind flows straight into their depths. A talent so smooth it can go unnoticed.
stableMarsoppositionNeptune4.2° to 5.0° orb
Alexander’s drive pulls against their imagination from across the wheel. Two ends of one rope.
stableJupitertrineSaturn4.7° to 4.9° orb
Alexander’s growth flows straight into their discipline. A talent so smooth it can go unnoticed.
stableSunconjunctionJupiter6.4° to 7.2° orb
Alexander’s core identity and growth act as one.
possibleMoontrineVenusorb from 0.0° to 11.9° depending on birth time
possibleMoonsquareUranusorb from 0.0° to 10.2° depending on birth time
Chart signature
Elements
- Fire5 of 10
- Earth0 of 10
- Air1 of 10
- Water4 of 10
Modalities
- Cardinal5 of 10
- Fixed2 of 10
- Mutable3 of 10
Counted across the ten planets by sign: Fire leads this chart, with no planets in Earth signs.
Alexander’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 3°56′ (moves 0.06° 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 Alexander building steadiness by hand after finding it could not be assumed.
⚳ CeresAquarius 24°35′ (moves 0.35° over the day)
dwarf planet (1) · how a person nurtures and wants to be nurtured
Ceres in Aquarius is read as nurture at the scale of the group. Alexander is read as someone whose care shows up as fairness to many rather than fuss over one.
♡ ErosAquarius 9°10′ (moves 0.52° 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. Alexander is read as needing a shared idea before a shared bed.
⚕ HygieaCapricorn 19°33′ (moves 0.27° over the day)
main-belt asteroid (10) · health, routine and what keeps them well
Hygiea in Capricorn is read as health as discipline and a long game. Alexander is read as someone who keeps going past the point others stop, for better and worse.
⚸ Black Moon LilithScorpio 13°21′ (moves 0.11° over the day)
mean lunar apogee · the part that refuses to be tamed
Black Moon Lilith in Scorpio is read as power the person has stopped apologising for. Alexander is read as someone others project onto, and who has learnt to let them.
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.
- Black Moon Lilith trine Venus 0.7°
- Eros sextile Sun 1.6°
- Black Moon Lilith trine Pluto 1.6°
- Ceres opposition Neptune 2.2°
- Ceres conjunction Mars 2.4°
- Black Moon Lilith trine Mercury 2.8°
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°).
Alexander’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. ♂ Mars8 pts
rules the Sun sign, Aries; disposes Sun, Jupiter, Uranus; 2 major aspects
2. ☉ Sun4 pts
disposes Neptune; 3 major aspects
3. ☽ Moon4 pts
in its own sign, Cancer; disposes Pluto; 1 major aspect
A Mars-led chart is read as drive setting the pace: Alexander is read as acting first and reflecting after.
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 Alexander’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.
Stellium in Aries · Sun, Jupiter, UranusThree or more planets in one sign (four, or three with a luminary, by AsterNym's count): a concentration astrologers read as that sign's themes dominating the chart.
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-square Mars 0.3°
- Uranus biquintile Neptune 0.8°
- Mars biquintile Pluto 1.3°
- Venus semi-sextile Jupiter 1.7°
Houses need a birth time. None is documented for Alexander Grothendieck, so no house placements are claimed for the planets or the minor bodies above.
More people like Alexander
Other mathematicians
- Paul Cohen1934
- Herbert A. Hauptman1917
- Michael Atiyah1929
- John von Neumann1903
- Dudley R. Herschbach1932
- René Thom1923
Born in Germany
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- Carl DueringGerman actor
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- Anne FrankGerman-born Dutch Jewish diarist and Holocaust victim
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More charts like Alexander’s
Fellow Aries suns
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- Ann Romneywife of Mitt Romney, First Lady of Massachusetts
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Born in Dragon years
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- James CoburnAmerican actor
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Also born on March 28
- Mario Vargas Llosa1936
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- D4vd2005
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Fellow Yin Fire day masters
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Other Aries Dragon charts
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Other Radiant Diplomats
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Famous people with Life Path 6
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From the journal: Astrology vs astronomy: when and why they separated · Is Western astrology outdated?
Alexander’s cards
Every card is computed from March 28, 1928, none chosen. Tap one to flip it.
♂ Ruled by Mars
Iron Fe
Tap to flip
The working: BaZi pillarsshow
BaZi pillars
Day Master: yin Fire.
Year
戊
yang Earth
辰
Dragon
Earth
roots & early life
Month
乙
yin Wood
卯
Rabbit
Wood
work & drive
Day
day master
丁
yin Fire
卯
Rabbit
Wood
you & partnership
No birth time is on public record for Alexander Grothendieck, 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
Alexander’s birth date and birthplace come from Wikidata Q77141, 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 Konrad Jacobs, Erlangen, Copyright by MFO / Original uploader was AEDP at it.wikipedia, CC BY-SA 2.0 de, via Wikimedia Commons.
The same Alexander Grothendieck 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 Alexander Grothendieck.
Quick answers about Alexander Grothendieck’s chart
- What zodiac sign was Alexander Grothendieck?
- Alexander Grothendieck was an Aries: born March 28, 1928, which puts the Sun in Aries for the whole of that day. That is the Western star sign. In the Chinese zodiac they were an Earth Dragon.
- What was Alexander Grothendieck's Chinese zodiac animal?
- The Dragon, with the Earth element, from the Chinese lunar year of the March 28, 1928 birth.
- What time was Alexander Grothendieck 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 Alexander Grothendieck's Life Path number?
- Life Path 6, calculated in numerology from the March 28, 1928 birth date.
- What was Alexander Grothendieck's Chiron sign?
- Chiron in Taurus at 3°. Position from JPL Horizons for the March 28, 1928 birth date.
- Where was Alexander Grothendieck's Black Moon Lilith?
- Mean Black Moon Lilith in Scorpio at 13°. This is the mean lunar apogee; the osculating Lilith some tables use can sit up to 30° away.
- What was Alexander Grothendieck's dominant planet?
- Mars, on AsterNym's dominance score (8 points: rules the Sun sign, Aries; disposes Sun, Jupiter, Uranus; 2 major aspects). Sun is second and Moon third. Other sites weight rulerships and aspects differently and can name a different leader.
