Jaroslav Heyrovský
Jaroslav Heyrovský (born December 20, 1890, Prague, Czech Republic; died 1967), was a Czech chemist. Heyrovský's honours include Nobel Prize in Chemistry, Order of the Republic and Foreign Member of the Royal Society.
Jaroslav Heyrovský’s zodiac sign was Sagittarius, and in the Chinese zodiac they were a Metal Tiger, with Life Path 5 in numerology.
Sagittarius, and in the Chinese zodiac they were a 
Metal Tiger, with 
Life Path 5 in numerology.How compatible are you with Jaroslav Heyrovský?
Your birthday, just below, gives your match percentage with Jaroslav. Under a minute.
Your AsterNym Match
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Two details and you have your number with Jaroslav. 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
Jaroslav Heyrovský’s AsterNym identity
The Evergreen Explorer
Wood represents growth. Wood-led charts are associated with patience, adaptability and the drive to keep developing. Life Path 5 represents freedom: change, movement, variety and resistance to restrictive routines.
Wood Day Master (BaZi) × mutable Sun × Life Path 5, on the physical plane.
Jaroslav’s lucky numbers, colours and stones
Traditional correspondences calculated from AsterNym’s astrology, wuxing and numerology system.
Lucky numbers
5 · 1 · 3 · 4
Lucky colours
White & Gold
Lucky day
Thursday
Direction
← West
Season
autumn
Stones
Turquoise, Yellow Sapphire, Rutilated Quartz
Flower constellation
🤍 Narcissus · 🌸 Peony · 🤍 White Magnolia
Frost white · Rose-gold · Moonlight white
The same wuxing & numerology correspondences as your own print. One tradition, read for everyone
What the chart says
Jaroslav, according to the stars
Core essence
Jaroslav is the friend who says "let's just go" and means today. The core of Jaroslav is faith that the world is bigger and better than the room they are in, and a restlessness to go and check. They are honest to the point of it being a sport, funny by accident, and impossible to keep small. Freedom is not a preference, it is oxygen.
The vibe
Underneath, Jaroslav runs hot. The Moon in Aries means feelings arrive fast and loud and burn out just as fast, so the flare you saw an hour ago is already forgiven. What Jaroslav needs to feel safe is honesty in real time and room to react. Say it straight, and they will always meet you there.
How Jaroslav wants to be loved
Jaroslav wants to be loved by someone who is also their favourite travel companion. Venus in Sagittarius needs laughter, honesty and a long leash, and gives the same. Possessiveness kills it; adventure feeds it. Go somewhere new with Jaroslav and watch them fall for you again.
How Jaroslav creates
How Jaroslav makes things happen: they find the gap and grow through it. A Yin Wood day master is the vine, flexible, quietly relentless, better at working around a wall than at knocking it down. Jaroslav creates by adapting, by connecting people, by making the awkward thing fit. Underestimate them and you will look up one day to find them everywhere.
Instinct
Instinct: Jaroslav is bold, a Tiger year, and their gut reaction is to leap. Brave, generous, a bit dramatic, magnetic to be around, and never boring for a second. The Metal year sharpens it: principled, determined, clear about what is right.
Purpose
Purpose: Life Path 5 is the free spirit. Jaroslav is here to explore, to change, to taste everything and report back. Adventure, variety and freedom are not distractions from their purpose, they are it. The lesson is choosing, sometimes, and staying.
Triggers
Triggers: cruelty, and being cornered. Mars in Pisces does not fight straight; Jaroslav slips away, absorbs it, or turns it into something creative instead. Anger becomes art or empathy. The lesson is learning that they are allowed to take up space and say the hard thing.
Computed from Jaroslav's birth date, not guessed. The full working is below.
Where Jaroslav sits
Six lines. Tap where you sit on each.
Jaroslav’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 may wear your feelings openly. What you feel tends to show.
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 Jaroslav Heyrovský
Three stars chosen from the real sky above Prague 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.
Sagittarius Sun
Sagittarius SunRestless in a good way.
Jaroslav Heyrovský's Sun was in Sagittarius for the whole of December 20, 1890, so no birth time is needed to settle it. Traditional Sagittarius readings associate the sign with distance, belief and candour: travel, big questions and an answer given before it was asked for. Astrologers describe it as the mutable fire sign, ruled by Jupiter, and read it for optimism and appetite. The corresponding tension is overreach, with the classical caution that the horizon is more attractive than the ground underfoot.
Metal Tiger
Metal TigerCourage before caution.
Jaroslav Heyrovský was born on December 20, 1890, which falls in a Metal Tiger year of the Chinese calendar. Traditional Tiger readings emphasise courage, presence and the willingness to go first. The Chinese almanacs describe the Tiger as the sign others follow, bright and impulsive, at its best when the stakes are high. The corresponding caution in the tradition is burnout: a sign that burns brightly and, without pacing, burns out, with little left in reserve for the long middle of things.
Life Path 5
Life Path 5Five doors open at once.
Jaroslav Heyrovský's birth date, December 20, 1890, reduces to Life Path 5 under the numerology method AsterNym uses. Traditional Life Path 5 readings associate the number with freedom, change and variety: movement, new experience and resistance to restrictive routine. Numerologists describe it as the path of the traveller, adaptable and restless. The corresponding tension is instability, with the caution that constant motion can become a way of avoiding commitment to any one direction.
What stands out in Jaroslav’s chart
- The tightest major aspect in Jaroslav Heyrovský's date-only chart is Venus opposition Neptune, with an orb of under 1°.
- Six of the ten planets fall in Mutable signs, making Mutable the strongest modality in this chart.
- This chart has an even Fire/Air emphasis, with three planets in each.
- Jaroslav Heyrovský combines a Wood Day Master in BaZi with a mutable Sun and a Life Path on the physical plane, the combination AsterNym calls The Evergreen Explorer.
Jaroslav’s birth chart
Reference chart · birth time unknown
No documented birth time exists for Jaroslav Heyrovský, so the positions below are checked across the whole birth date, not fixed at noon. The Moon ranges from 12° to 25° Aries 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.
stableVenusoppositionNeptune0.0° to 0.1° orb
Jaroslav’s affections pull against their imagination from across the wheel. A see-saw looking for balance, often played out through other people.
stableMercurytrineSaturn0.3° to 1.7° orb
Jaroslav’s mind flows straight into their discipline.
stableSunsextileUranus1.4° to 2.4° orb
Jaroslav’s core identity opens doors for their need for freedom.
stableVenussquareMars1.7° to 2.7° orb
Jaroslav’s affections grind against their drive.
stableVenusoppositionPluto1.7° to 1.8° orb
Jaroslav’s affections pull against their depths from across the wheel. A see-saw looking for balance, often played out through other people.
stableNeptuneconjunctionPluto1.7° orb
Jaroslav’s imagination and depths act as one. Wherever one goes, the other is already there.
stableMarstrineUranus1.8° to 2.5° orb
Jaroslav’s drive flows straight into their need for freedom. A talent so smooth it can go unnoticed.
stableMarssquareNeptune1.8° to 2.6° orb
Jaroslav’s drive grinds against their imagination. The angle that irritates, and the one that teaches.
stableMarssquarePluto3.6° to 4.3° orb
Jaroslav’s drive grinds against their depths. The friction is lifelong. Worked with, it builds real strength.
stableSunsextileMars3.9° to 4.1° orb
Jaroslav’s core identity opens doors for their drive.
stableJupitertrinePluto5.4° to 5.7° orb
Jaroslav’s growth flows straight into their depths.
possibleMoonsquareMercuryorb from 0.1° to 9.0° depending on birth time
Chart signature
Elements
- Fire3 of 10
- Earth2 of 10
- Air3 of 10
- Water2 of 10
Modalities
- Cardinal2 of 10
- Fixed2 of 10
- Mutable6 of 10
Counted across the ten planets by sign.
Jaroslav’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.
⚷ Chiron ℞Leo 3°29′ (moves 0.05° over the day)
centaur (2060) · the wound and what is learnt from it
Chiron in Leo is read as a sore spot around being seen. The tradition has Jaroslav performing through the doubt rather than waiting for it to lift.
⚳ CeresCapricorn 7°29′ (moves 0.40° over the day)
dwarf planet (1) · how a person nurtures and wants to be nurtured
Ceres in Capricorn is read as nurture through structure and provision. The reading has Jaroslav caring by building something that lasts for others.
♡ ErosSagittarius 7°39′ (moves 0.69° over the day)
near-Earth asteroid (433) · what draws them and how they desire
Eros in Sagittarius is read as desire for the far-off and the free. The reading has Jaroslav attracted to people who open a door rather than close one.
⚕ HygieaPisces 29°40′ (moves 0.15° over the day)
main-belt asteroid (10) · health, routine and what keeps them well
Hygiea in Pisces is read as health that rises and falls with what is absorbed from others. The reading has Jaroslav needing solitude to reset.
⚸ Black Moon LilithLeo 26°55′ (moves 0.11° over the day)
mean lunar apogee · the part that refuses to be tamed
Black Moon Lilith in Leo is read as a pride that will not perform on demand. Jaroslav is read as most dangerous when underestimated.
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.
- Eros opposition Pluto 1.1°
- Hygiea square Sun 1.1°
- Chiron trine Venus 1.3°
- Chiron sextile Neptune 1.3°
- Black Moon Lilith trine Sun 1.7°
- Eros conjunction Venus 2.9°
- Eros opposition Neptune 2.9°
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°).
Jaroslav’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. ♃ Jupiter6 pts
rules the Sun sign, Sagittarius; disposes Sun, Venus; 1 major aspect
2. ♂ Mars5 pts
5 major aspects
3. ♇ Pluto5 pts
disposes Uranus; 4 major aspects
A Jupiter-led chart is read as scale and optimism leading: Jaroslav is read as reaching for the bigger version of any plan.
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 Jaroslav’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 Mars · Venus, Neptune, MarsAn opposition with a third planet squaring both ends. Read as a driving tension that resolves through the apex planet.- T-square onto Mars · Venus, Pluto, MarsAn 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.
- Uranus biquintile Pluto 0.1°
- Jupiter biquintile Saturn 0.9°
- Mercury semi-square Mars 1.4°
- Sun semi-square Jupiter 1.5°
- Saturn semi-square Uranus 1.7°
Houses need a birth time. None is documented for Jaroslav Heyrovský, so no house placements are claimed for the planets or the minor bodies above.
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More charts like Jaroslav’s
Fellow Sagittarius suns
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Born in Tiger years
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Also born on December 20
- Kylian Mbappé1998
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Fellow Yin Wood day masters
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Other Sagittarius Tiger charts
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Other Evergreen Explorers
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From the journal: Your Sun, Moon and rising signs: the Big Three explained · What does Elon Musk say about astrology?
Jaroslav’s cards
Every card is computed from December 20, 1890, none chosen. Tap one to flip it.
♃ Ruled by Jupiter
Tin Sn
Tap to flip
The working: BaZi pillarsshow
BaZi pillars
Day Master: yin Wood.
Year
庚
yang Metal
寅
Tiger
Wood
roots & early life
Month
戊
yang Earth
子
Rat
Water
work & drive
Day
day master
乙
yin Wood
亥
Pig
Water
you & partnership
No birth time is on public record for Jaroslav Heyrovský, 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
Jaroslav’s birth date and birthplace come from Wikidata Q157701, 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 archiv ÚFCH J.Heyrovského AV ČR, v.v.i., CC BY-SA 3.0, via Wikimedia Commons.
The same Jaroslav Heyrovský at Wikipedia.
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 Jaroslav Heyrovský.
Quick answers about Jaroslav Heyrovský’s chart
- What zodiac sign was Jaroslav Heyrovský?
- Jaroslav Heyrovský was a Sagittarius: born December 20, 1890, which puts the Sun in Sagittarius for the whole of that day. That is the Western star sign. In the Chinese zodiac they were a Metal Tiger.
- What was Jaroslav Heyrovský's Chinese zodiac animal?
- The Tiger, with the Metal element, from the Chinese lunar year of the December 20, 1890 birth.
- What time was Jaroslav Heyrovský 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 Jaroslav Heyrovský's Life Path number?
- Life Path 5, calculated in numerology from the December 20, 1890 birth date.
- What was Jaroslav Heyrovský's Chiron sign?
- Chiron in Leo at 3°. Position from JPL Horizons for the December 20, 1890 birth date.
- Where was Jaroslav Heyrovský's Black Moon Lilith?
- Mean Black Moon Lilith in Leo at 26°. This is the mean lunar apogee; the osculating Lilith some tables use can sit up to 30° away.
- What was Jaroslav Heyrovský's dominant planet?
- Jupiter, on AsterNym's dominance score (6 points: rules the Sun sign, Sagittarius; disposes Sun, Venus; 1 major aspect). Mars is second and Pluto third. Other sites weight rulerships and aspects differently and can name a different leader.
