Tjalling Koopmans birth chart is shown with zodiac signs and aspects. Because the birth time is unknown, Arcadia does not use houses, Rising sign, or angular dominants as the main basis of interpretation.
Tjalling Koopmans's chart rests first on the stable factors: Sun in Virgo and Moon in Gemini. Without a reliable time, signs and aspects are stronger than the Rising sign or houses.
Chart detail:
Sun trine Saturn (orb 2.2°) gives a central dynamic in this reading. The orb is tight enough to count in the main reading.
In plain terms, this aspect gives positive ease building identity, confidence, and the father-image field through seriousness and endurance. Father-image layer: ego, personal direction, and the father imprint are supported by Saturn.
The birth time is not known with certainty, so the Rising sign and houses are less reliable. Signs and exact aspects give the safer reading base.
Learn the zodiac signs · Learn the planets · Learn the houses · Browse celebrity charts · Calculate your own birth chart
| Element | Sign | Degrees | Speed |
| Sun | Virgo | 04° 17' 05" | 0.966 / day |
| Moon | Gemini | 15° 57' 19" | 13.973 / day |
| Mercury | Libra | 01° 19' 18" | 1.058 / day |
| Venus | Leo | 11° 15' 43" | 1.221 / day |
| Mars | Virgo | 14° 14' 56" | 0.638 / day |
| Jupiter | Libra | 14° 10' 52" | 0.188 / day |
| Saturn | Taurus | 06° 30' 47" R | -0.015 / day |
| Uranus | Capricorn | 21° 43' 58" R | -0.025 / day |
| Neptune | Cancer | 20° 40' 32" | 0.028 / day |
| Pluto | Gemini | 27° 46' 07" | 0.011 / day |
| Lilith | Scorpio | 17° 55' 52" | 0.11 / day |
| RS | Sagittarius | 07° 37' 11" | |
| MH | Virgo | 03° 55' 45" |
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Aspects Mercury square Pluto (orb 3.5°)
This section gives a concrete reading thread. It highlights the most visible signatures, then the tabs keep each placement separate instead of mixing everything together.
Important: Unknown birth time: the Rising sign, houses, and angular dominants are too time-sensitive to anchor the interpretation. The Moon remains useful, but its exact aspects can shift during the day: tight non-Moon aspects are more reliable when they exist.
Start here: a short reading that shows what hooks, what helps, what pushes back, and where it becomes concrete.
Sun in Virgo · Moon in Gemini
First hook: this is where the chart often becomes recognizable in real life. Sun in Virgo: identity and direction move through precision, method, usefulness, and attention to detail; Moon in Gemini: emotional safety looks for curiosity, language, movement, and mental adaptation. Because the birth time is missing, reliable aspects should carry the next step before houses or angles.
Dominants unavailable without reliable birth time
Angular dominants depend on birth time. Without a reliable hour, do not use them as primary evidence.
Harmonious circuit: Jupiter, Moon, and Venus
This is the easiest door into the chart: it shows what tends to cooperate naturally.
This pattern describes what comes more easily. Houses are not used here: unknown time. It connects Jupiter (growth, faith, luck, and confidence in the future), Moon (emotional needs, instinct, and inner safety), and Venus (attraction, pleasure, taste, and relationships).
This is the clearest cooperation pattern in the chart: Moon trine Jupiter (orb 1.8°) and Venus sextile Jupiter (orb 2.9°). It shows where functions support each other, recover, or come naturally when used together. Because several planets are connected, the full pattern matters more than one isolated aspect.
Tension link: Moon and Mars
This is the pressure line to read first: it shows where tension repeats in concrete situations.
This pattern shows where pressure builds fastest. Houses are not used here: unknown time. It connects Moon (emotional needs, instinct, and inner safety) and Mars (action, anger, desire, and courage).
This is the clearest friction pattern in the chart: Moon square Mars (orb 1.7°). It shows where pressure, contradiction, or repeated effort concentrates. No wider group outranks this link, so read it as a strong but isolated signal.
Houses unavailable without reliable birth time
Houses describe domains of existence, but they depend on birth time. Without a reliable hour, signs and aspects should carry the reading.
Read the full chart-reading method · Detailed placements and aspects are below in the tabs.
Without a reliable birth time, the Sun, Moon, and exact aspects become the reliable base. The Rising sign, houses, and angular dominants need a reliable birth time.
The Moon can change signs during a day. Near a lunar sign change, the Moon sign remains a hypothesis.
Without a reliable hour, exact aspects and reliable repetitions can strongly nuance the starting reading.
Sun in Virgo remains a reliable combination even without a birth time. The Sun describes identity, ego, father figure, visibility, and direction, with Virgo style: precision, method, usefulness, and attention to detail.
Concretely, the person expresses identity, ego, father figure, recognition, and personal direction through the Virgo style (precision, method, usefulness, and attention to detail). Exact aspects and repeated patterns indicate whether this theme becomes central.
Aspect connected to this placement: Sun trine Saturn (orb 2.2°). Aspect effect: gives positive ease building identity, confidence, and the father-image field through seriousness and endurance. Father-image layer: ego, personal direction, and the father imprint are supported by Saturn.
Sun trine Saturn (orb 2.2°) shows positive structural ease between the two planets. The orb is tight enough to count in the main reading.
Here, Sun in Virgo brings identity, ego, father figure, visibility, and direction with Virgo style (precision, method, usefulness, and attention to detail); Saturn in Taurus brings discipline, constraint, endurance, and mastery with Taurus style (nature, good food, physical sensuality, roots, resources, and perseverance).
Concrete support: this aspect gives positive ease building identity, confidence, and the father-image field through seriousness and endurance. Father-image layer: ego, personal direction, and the father imprint are supported by Saturn.
Moon in Gemini remains a useful base without a birth time. The Moon sign is often usable, but near a Moon sign change it remains a hypothesis; the Moon describes personal dream, play, inner child, childhood imprint, mother figure, mother image, optimism, and inner rhythm, with Gemini style: curiosity, language, movement, and mental adaptation.
Concretely, the person expresses personal dream, play instinct, inner child, childhood imprint, mother figure, mother image, optimism, and inner rhythm through the Gemini style (curiosity, language, movement, and mental adaptation). Exact aspects and repeated patterns indicate whether this theme becomes central.
Aspect connected to this placement: Moon square Mars (orb 1.7°). Aspect effect: creates live tension between the inner child, mother image, and Mars: vulnerability, protection, or the need for safety can turn into anger, inhibition, or defense, sometimes through a weak, inhibiting, or castrating mother image.
Time-sensitive Moon aspect: Moon trine Jupiter (orb 1.8°). Because the birth time is unknown, the Moon's exact degree can shift during the day. This interpretation stays provisional and gains weight only if the aspect remains tight across the possible birth window or repeats another clear signature.
Here, Moon in Gemini brings personal dream, play, inner child, childhood imprint, mother figure, mother image, optimism, and inner rhythm with Gemini style (curiosity, language, movement, and mental adaptation); Jupiter in Libra brings personal fulfillment, confidence, encouragement, and broader horizons with Libra style (relationship, balance, negotiation, and sense of form).
Concrete support: this aspect gives natural support between personal dream, optimism, and fulfillment: confidence feeds the inner child instead of crushing it. Mother-image layer: childhood, mother image, and inner child are supported by Jupiter.
Time-sensitive Moon aspect: Moon square Mars (orb 1.7°). Because the birth time is unknown, the Moon's exact degree can shift during the day. This interpretation stays provisional and gains weight only if the aspect remains tight across the possible birth window or repeats another clear signature.
Here, Moon in Gemini brings personal dream, play, inner child, childhood imprint, mother figure, mother image, optimism, and inner rhythm with Gemini style (curiosity, language, movement, and mental adaptation); Mars in Virgo brings action, courage, competition, and effort with Virgo style (precision, method, usefulness, and attention to detail).
Concrete friction: this aspect creates live tension between the inner child, mother image, and Mars: vulnerability, protection, or the need for safety can turn into anger, inhibition, or defense, sometimes through a weak, inhibiting, or castrating mother image.
The Rising sign cannot be determined if the time is not known.
Mercury in Libra remains a reliable combination even without a birth time. Mercury describes intellect, language, thought, and technique, with Libra style: relationship, balance, negotiation, and sense of form.
Concretely, the person expresses thinking, speech, learning, technique, and mental strategy through the Libra style (relationship, balance, negotiation, and sense of form). Exact aspects and repeated patterns indicate whether this theme becomes central.
Aspect connected to this placement: Mercury square Pluto (orb 3.5°). Aspect effect: creates tension between thought, obsession, secrecy, and control: analysis can become too suspicious, harsh, or focused on crisis.
Mercury square Pluto (orb 3.5°) creates concrete friction between the two planets. The orb is moderate; it stays secondary beside tighter signatures.
Concrete friction: this aspect creates tension between thought, obsession, secrecy, and control: analysis can become too suspicious, harsh, or focused on crisis.
Venus in Leo remains a reliable combination even without a birth time. Venus describes desire, taste, relationship, and attraction, with Leo style: presence, pride, creation, and the wish to be seen.
Concretely, the person expresses desire, taste, attraction, pleasure, and love style through the Leo style (presence, pride, creation, and the wish to be seen). Exact aspects and repeated patterns indicate whether this theme becomes central.
Aspect connected to this placement: Venus sextile Jupiter (orb 2.9°). Aspect effect: lets desire and fulfillment cooperate when pleasure receives a concrete horizon.
Venus sextile Jupiter (orb 2.9°) shows active cooperation between the two planets. The orb is tight enough to count in the main reading.
Here, Venus in Leo brings desire, taste, relationship, and attraction with Leo style (presence, pride, creation, and the wish to be seen); Jupiter in Libra brings personal fulfillment, confidence, encouragement, and broader horizons with Libra style (relationship, balance, negotiation, and sense of form).
Concrete cooperation: desire and fulfillment can cooperate when pleasure receives a concrete horizon.
Venus square Saturn (orb 4.8°) creates concrete friction between the two planets. The orb is moderate; it stays secondary beside tighter signatures.
Concrete friction: this aspect creates tension between pleasure, affection, self-worth, and restraint.
Mars in Virgo remains a reliable combination even without a birth time. Mars describes action, courage, competition, and effort, with Virgo style: precision, method, usefulness, and attention to detail.
Concretely, the person expresses action, anger, courage, competition, and effort through the Virgo style (precision, method, usefulness, and attention to detail). Exact aspects and repeated patterns indicate whether this theme becomes central.
Same aspect, other side: the full reading is under the other planet, and it also applies to Mars.
Mars sextile Lilith (orb 3.7°) shows active cooperation between the two planets. The orb is moderate; it stays secondary beside tighter signatures.
Concrete cooperation: action can cooperate with Lilith's ideal as a deliberate decision force.
Jupiter in Libra remains a reliable combination even without a birth time. Jupiter describes personal fulfillment, confidence, encouragement, and broader horizons, with Libra style: relationship, balance, negotiation, and sense of form.
Concretely, the person expresses personal fulfillment, confidence, and opening of horizons through the Libra style (relationship, balance, negotiation, and sense of form). Exact aspects and repeated patterns indicate whether this theme becomes central.
Same aspect, other side: the full reading is under the other planet, and it also applies to Jupiter.
Same aspect, other side: the full reading is under the other planet, and it also applies to Jupiter.
Saturn in Taurus remains a reliable combination even without a birth time. Saturn describes discipline, constraint, endurance, and mastery, with Taurus style: nature, good food, physical sensuality, roots, resources, and perseverance.
Concretely, the person expresses discipline, limits, duty, fear, and long construction through the Taurus style (nature, good food, physical sensuality, roots, resources, and perseverance). Exact aspects and repeated patterns indicate whether this theme becomes central.
Same aspect, other side: the full reading is under the other planet, and it also applies to Saturn.
Same aspect, other side: the full reading is under the other planet, and it also applies to Saturn.
Uranus in Capricorn remains a reliable combination even without a birth time. Uranus describes disruption, independence, and change, with Capricorn style: structure, ambition, responsibility, and long construction.
Concretely, the person expresses freedom, disruption, broken rhythms, and the need for independence through the Capricorn style (structure, ambition, responsibility, and long construction). Exact aspects and repeated patterns indicate whether this theme becomes central.
Neptune in Cancer remains a reliable combination even without a birth time. Neptune describes imagination, image, popularity, collective moods, and inspiration, with Cancer style: memory, protection, belonging, and family sensitivity.
Concretely, the person expresses imagination, image, popularity, and the ability to read collective currents through the Cancer style (memory, protection, belonging, and family sensitivity). Exact aspects and repeated patterns indicate whether this theme becomes central.
Pluto in Gemini remains a reliable combination even without a birth time. Pluto describes crisis, power, survival, and regeneration, with Gemini style: curiosity, language, movement, and mental adaptation.
Concretely, the person expresses crisis, power, sexuality, survival, and transformation through the Gemini style (curiosity, language, movement, and mental adaptation). Exact aspects and repeated patterns indicate whether this theme becomes central.
Same aspect, other side: the full reading is under the other planet, and it also applies to Pluto.
Lilith in Scorpio remains a reliable combination even without a birth time. Lilith describes pure ideal, absolute demand, fascination, and refusal of compromise, with Scorpio style: intensity, desire, crisis, secrecy, and invisible power.
Concretely, the person expresses the pure ideal, absolute demand, desire, fascination, and what refuses to become ordinary through the Scorpio style (intensity, desire, crisis, secrecy, and invisible power). Exact aspects and repeated patterns indicate whether this theme becomes central.
Same aspect, other side: the full reading is under the other planet, and it also applies to Lilith.
