Ildefons Cerdà 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.
Ildefons Cerdà's chart rests first on the stable factors: Sun in Capricorn and Moon in Libra. Without a reliable time, signs and aspects are stronger than the Rising sign or houses.
Chart detail:
Mercury conjunct Neptune (orb 0.2°) gives a central dynamic in this reading. The orb is extremely tight; this aspect is one of the chart's strongest signals.
In plain terms, this aspect mixes intellect with images, imagination, popularity, and collective moods.
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.
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| Element | Sign | Degrees | Speed |
| Sun | Capricorn | 00° 51' 40" | 1.019 / day |
| Moon | Libra | 03° 30' 31" | 14.047 / day |
| Mercury | Sagittarius | 19° 53' 14" | 1.532 / day |
| Venus | Scorpio | 14° 00' 42" | 1.016 / day |
| Mars | Aries | 24° 23' 44" | 0.356 / day |
| Jupiter | Scorpio | 04° 28' 42" | 0.162 / day |
| Saturn | Aquarius | 09° 49' 17" | 0.101 / day |
| Uranus | Sagittarius | 08° 34' 21" | 0.058 / day |
| Neptune | Sagittarius | 20° 03' 34" | 0.037 / day |
| Pluto | Pisces | 20° 56' 37" | 0.007 / day |
| Lilith | Pisces | 05° 21' 60" | 0.111 / day |
| RS | Aries | 01° 15' 36" | |
| MH | Capricorn | 01° 03' 37" |
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Signs Sun in Capricorn · Venus in Scorpio · Mars in Aries
Aspects Mercury square Pluto (orb 1.1°) · Jupiter square Saturn (orb 5.3°) · Sun trine Mars (orb 6.5°) · Venus trine Pluto (orb 6.9°)
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 Capricorn · Moon in Libra
First hook: this is where the chart often becomes recognizable in real life. Sun in Capricorn: identity and direction move through structure, ambition, responsibility, and long construction; Moon in Libra: emotional safety looks for relationship, balance, negotiation, and sense of form. 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: Mars, Mercury, and Neptune
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 Mars (action, anger, desire, and courage), Mercury (thinking, speech, and decisions), and Neptune (dreams, ideals, imagination, and confusion).
This is the clearest cooperation pattern in the chart: Mercury trine Mars (orb 4.5°) and Mars trine Neptune (orb 4.3°). 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: Mercury and Pluto
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 Mercury (thinking, speech, and decisions) and Pluto (power, crisis, intensity, and deep transformation).
This is the clearest friction pattern in the chart: Mercury square Pluto (orb 1.1°). 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 Capricorn remains a reliable combination even without a birth time. The Sun describes identity, ego, father figure, visibility, and direction, with Capricorn style: structure, ambition, responsibility, and long construction.
Concretely, the person expresses identity, ego, father figure, recognition, and personal direction through the Capricorn style (structure, ambition, responsibility, and long construction). Exact aspects and repeated patterns indicate whether this theme becomes central.
Aspect connected to this placement: Sun square Moon (orb 2.6°). Aspect effect: creates tension between conscious direction, the inner child, and the personal dream.
Time-sensitive Moon aspect: Sun square Moon (orb 2.6°). 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, Sun in Capricorn brings identity, ego, father figure, visibility, and direction with Capricorn style (structure, ambition, responsibility, and long construction); Moon in Libra brings personal dream, play, inner child, childhood imprint, mother figure, mother image, optimism, and inner rhythm with Libra style (relationship, balance, negotiation, and sense of form).
Concrete friction: this aspect creates tension between conscious direction, the inner child, and the personal dream.
Sun sextile Jupiter (orb 3.6°) shows active cooperation between the two planets. The orb is moderate; it stays secondary beside tighter signatures.
Concrete cooperation: identity and fulfillment can cooperate when a wide vision receives clear direction. Father-image layer: ego, personal direction, and the father imprint can cooperate with Jupiter.
Sun sextile Lilith (orb 4.5°) shows active cooperation between the two planets. The orb is moderate; it stays secondary beside tighter signatures.
Concrete cooperation: identity can cooperate with Lilith's ideal when that demand receives a concrete form. Father-image layer: ego, personal direction, and the father imprint can cooperate with Lilith.
Moon in Libra 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 Libra style: relationship, balance, negotiation, and sense of form.
Concretely, the person expresses personal dream, play instinct, inner child, childhood imprint, mother figure, mother image, optimism, and inner rhythm 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 Moon.
The Rising sign cannot be determined if the time is not known.
Mercury in Sagittarius remains a reliable combination even without a birth time. Mercury describes intellect, language, thought, and technique, with Sagittarius style: expansion, travel, belief, and the search for meaning.
Concretely, the person expresses thinking, speech, learning, technique, and mental strategy through the Sagittarius style (expansion, travel, belief, and the search for meaning). Exact aspects and repeated patterns indicate whether this theme becomes central.
Aspect connected to this placement: Mercury conjunct Neptune (orb 0.2°). Aspect effect: mixes intellect with images, imagination, popularity, and collective moods.
Mercury conjunct Neptune (orb 0.2°) brings the two planets out together. The orb is extremely tight; this aspect is one of the chart's strongest signals.
Here, both planets use the same Sagittarius style (expansion, travel, belief, and the search for meaning). Mercury in Sagittarius brings intellect, language, thought, and technique; Neptune in Sagittarius brings imagination, image, popularity, collective moods, and inspiration.
Concrete effect: this aspect mixes intellect with images, imagination, popularity, and collective moods.
Mercury square Pluto (orb 1.1°) creates concrete friction between the two planets. The orb is very tight; this describes a stable character pattern more than a passing reaction.
Here, Mercury in Sagittarius brings intellect, language, thought, and technique with Sagittarius style (expansion, travel, belief, and the search for meaning); Pluto in Pisces brings crisis, power, survival, and regeneration with Pisces style (imagination, faith, compassion, dream, and permeability).
Concrete friction: this aspect creates tension between thought, obsession, secrecy, and control: analysis can become too suspicious, harsh, or focused on crisis.
Mercury trine Mars (orb 4.5°) shows positive structural ease between the two planets. The orb is moderate; it stays secondary beside tighter signatures.
Concrete support: this aspect sharpens decision-making, speech, and execution.
Venus in Scorpio remains a reliable combination even without a birth time. Venus describes desire, taste, relationship, and attraction, with Scorpio style: intensity, desire, crisis, secrecy, and invisible power.
Concretely, the person expresses desire, taste, attraction, pleasure, and love style through the Scorpio style (intensity, desire, crisis, secrecy, and invisible power). Exact aspects and repeated patterns indicate whether this theme becomes central.
Venus square Saturn (orb 4.2°) 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 Aries remains a reliable combination even without a birth time. Mars describes action, courage, competition, and effort, with Aries style: initiative, speed, confrontation, and direct action.
Concretely, the person expresses action, anger, courage, competition, and effort through the Aries style (initiative, speed, confrontation, and direct action). Exact aspects and repeated patterns indicate whether this theme becomes central.
Mars trine Neptune (orb 4.3°) shows positive structural ease between the two planets. The orb is moderate; it stays secondary beside tighter signatures.
Concrete support: this aspect gives natural support between action and inspiration: the gesture can carry a strong, popular, or imaginal image.
Same aspect, other side: the full reading is under the other planet, and it also applies to Mars.
Jupiter in Scorpio remains a reliable combination even without a birth time. Jupiter describes personal fulfillment, confidence, encouragement, and broader horizons, with Scorpio style: intensity, desire, crisis, secrecy, and invisible power.
Concretely, the person expresses personal fulfillment, confidence, and opening of horizons through the Scorpio style (intensity, desire, crisis, secrecy, and invisible power). Exact aspects and repeated patterns indicate whether this theme becomes central.
Aspect connected to this placement: Jupiter trine Lilith (orb 0.9°). Aspect effect: lets Lilith's ideal support confidence, personal fulfillment, and the sense of a larger life.
Jupiter trine Lilith (orb 0.9°) shows positive structural ease between the two planets. The orb is extremely tight; this aspect is one of the chart's strongest signals.
Here, Jupiter in Scorpio brings personal fulfillment, confidence, encouragement, and broader horizons with Scorpio style (intensity, desire, crisis, secrecy, and invisible power); Lilith in Pisces brings pure ideal, absolute demand, fascination, and refusal of compromise with Pisces style (imagination, faith, compassion, dream, and permeability).
Concrete support: Lilith's ideal can support confidence, personal fulfillment, and the sense of a larger life.
Same aspect, other side: the full reading is under the other planet, and it also applies to Jupiter.
Jupiter square Saturn (orb 5.3°) creates concrete friction between the two planets. The orb is moderate; it stays secondary beside tighter signatures.
Concrete friction: this aspect creates a push-pull between personal fulfillment and discipline: one side wants a larger life, the other demands method, timing, and responsibility.
Saturn in Aquarius remains a reliable combination even without a birth time. Saturn describes discipline, constraint, endurance, and mastery, with Aquarius style: independence, networks, distance, and collective change.
Concretely, the person expresses discipline, limits, duty, fear, and long construction through the Aquarius style (independence, networks, distance, and collective change). Exact aspects and repeated patterns indicate whether this theme becomes central.
Aspect connected to this placement: Saturn sextile Uranus (orb 1.2°). Aspect effect: gives positive cooperation between Saturn (discipline, constraint, endurance, and mastery) and Uranus (disruption, independence, and change) in concrete situations.
Saturn sextile Uranus (orb 1.2°) shows active cooperation between the two planets. The orb is very tight; this describes a stable character pattern more than a passing reaction.
Here, Saturn in Aquarius brings discipline, constraint, endurance, and mastery with Aquarius style (independence, networks, distance, and collective change); Uranus in Sagittarius brings disruption, independence, and change with Sagittarius style (expansion, travel, belief, and the search for meaning).
Concrete cooperation: this aspect gives positive cooperation between Saturn (discipline, constraint, endurance, and mastery) and Uranus (disruption, independence, and change) in concrete situations.
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 Sagittarius remains a reliable combination even without a birth time. Uranus describes disruption, independence, and change, with Sagittarius style: expansion, travel, belief, and the search for meaning.
Concretely, the person expresses freedom, disruption, broken rhythms, and the need for independence through the Sagittarius style (expansion, travel, belief, and the search for meaning). 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 Uranus.
Neptune in Sagittarius remains a reliable combination even without a birth time. Neptune describes imagination, image, popularity, collective moods, and inspiration, with Sagittarius style: expansion, travel, belief, and the search for meaning.
Concretely, the person expresses imagination, image, popularity, and the ability to read collective currents through the Sagittarius style (expansion, travel, belief, and the search for meaning). 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 Neptune.
Same aspect, other side: the full reading is under the other planet, and it also applies to Neptune.
Pluto in Pisces remains a reliable combination even without a birth time. Pluto describes crisis, power, survival, and regeneration, with Pisces style: imagination, faith, compassion, dream, and permeability.
Concretely, the person expresses crisis, power, sexuality, survival, and transformation through the Pisces style (imagination, faith, compassion, dream, and permeability). 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 Pisces remains a reliable combination even without a birth time. Lilith describes pure ideal, absolute demand, fascination, and refusal of compromise, with Pisces style: imagination, faith, compassion, dream, and permeability.
Concretely, the person expresses the pure ideal, absolute demand, desire, fascination, and what refuses to become ordinary through the Pisces style (imagination, faith, compassion, dream, and permeability). 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.
Same aspect, other side: the full reading is under the other planet, and it also applies to Lilith.
