Mark Sisson 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.
Mark Sisson's chart rests first on the stable factors: Sun in Cancer and Moon in Scorpio. Without a reliable time, signs and aspects are stronger than the Rising sign or houses.
Chart detail:
Saturn conjunct Neptune (orb 0.1°) 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 brings hard structure, limits, dream, image, and collective inspiration together.
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 | Cancer | 27° 27' 35" | 0.954 / day |
| Moon | Scorpio | 12° 07' 35" | 12.399 / day |
| Mercury | Leo | 05° 28' 37" R | -0.612 / day |
| Venus | Gemini | 13° 53' 39" | 1.086 / day |
| Mars | Cancer | 23° 57' 44" | 0.65 / day |
| Jupiter | Gemini | 16° 14' 29" | 0.202 / day |
| Saturn | Libra | 21° 08' 16" | 0.043 / day |
| Uranus | Cancer | 19° 19' 15" | 0.06 / day |
| Neptune | Libra | 21° 11' 30" | 0.009 / day |
| Pluto | Leo | 22° 06' 05" | 0.029 / day |
| Lilith | Virgo | 23° 10' 08" | 0.111 / day |
| RS | Scorpio | 00° 03' 54" | |
| MH | Cancer | 25° 58' 34" |
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Aspects Mars square Saturn (orb 2.8°) · Mars square Neptune (orb 2.8°)
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 Cancer · Moon in Scorpio
First hook: this is where the chart often becomes recognizable in real life. Sun in Cancer: identity and direction move through memory, protection, belonging, and family sensitivity; Moon in Scorpio: emotional safety looks for intensity, desire, crisis, secrecy, and invisible power. 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: Saturn, Jupiter, Pluto, 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 Saturn (responsibility, limits, effort, and patience), Jupiter (growth, faith, luck, and confidence in the future), Pluto (power, crisis, intensity, and deep transformation), and Neptune (dreams, ideals, imagination, and confusion).
This is the clearest cooperation pattern in the chart: Saturn sextile Pluto (orb 1.0°), Jupiter trine Saturn (orb 4.9°), and Jupiter trine Neptune (orb 5°). 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 circuit: Saturn, Mars, Uranus, and Neptune
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 Saturn (responsibility, limits, effort, and patience), Mars (action, anger, desire, and courage), Uranus (change, freedom, rupture, and originality), and Neptune (dreams, ideals, imagination, and confusion).
This is the clearest friction pattern in the chart: Saturn square Uranus (orb 1.8°), Mars square Neptune (orb 2.8°), and Mars square Saturn (orb 2.8°). It shows where pressure, contradiction, or repeated effort concentrates. Because several planets are connected, the full pattern matters more than one isolated aspect.
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 Cancer remains a reliable combination even without a birth time. The Sun describes identity, ego, father figure, visibility, and direction, with Cancer style: memory, protection, belonging, and family sensitivity.
Concretely, the person expresses identity, ego, father figure, recognition, and personal direction through the Cancer style (memory, protection, belonging, and family sensitivity). Exact aspects and repeated patterns indicate whether this theme becomes central.
Aspect connected to this placement: Sun conjunct Mars (orb 3.5°). Aspect effect: makes ego, personal direction, courage, competition, and the need to act come out together.
Sun conjunct Mars (orb 3.5°) brings the two planets out together. The orb is tight enough to count in the main reading.
Here, both planets use the same Cancer style (memory, protection, belonging, and family sensitivity). Sun in Cancer brings identity, ego, father figure, visibility, and direction; Mars in Cancer brings action, courage, competition, and effort.
Concrete effect: this aspect makes ego, personal direction, courage, competition, and the need to act come out together.
Sun sextile Lilith (orb 4.3°) 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 Scorpio 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 Scorpio style: intensity, desire, crisis, secrecy, and invisible power.
Concretely, the person expresses personal dream, play instinct, inner child, childhood imprint, mother figure, mother image, optimism, and inner rhythm through the Scorpio style (intensity, desire, crisis, secrecy, and invisible power). Exact aspects and repeated patterns indicate whether this theme becomes central.
The Rising sign cannot be determined if the time is not known.
Mercury in Leo remains a reliable combination even without a birth time. Mercury describes intellect, language, thought, and technique, with Leo style: presence, pride, creation, and the wish to be seen.
Concretely, the person expresses thinking, speech, learning, technique, and mental strategy through the Leo style (presence, pride, creation, and the wish to be seen). Exact aspects and repeated patterns indicate whether this theme becomes central.
Venus in Gemini remains a reliable combination even without a birth time. Venus describes desire, taste, relationship, and attraction, with Gemini style: curiosity, language, movement, and mental adaptation.
Concretely, the person expresses desire, taste, attraction, pleasure, and love style 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: Venus conjunct Jupiter (orb 2.4°). Aspect effect: brings desire, taste, attraction, confidence, and personal fulfillment together: pleasure wants more scale.
Venus conjunct Jupiter (orb 2.4°) brings the two planets out together. The orb is tight enough to count in the main reading.
Here, both planets use the same Gemini style (curiosity, language, movement, and mental adaptation). Venus in Gemini brings desire, taste, relationship, and attraction; Jupiter in Gemini brings personal fulfillment, confidence, encouragement, and broader horizons.
Concrete effect: this aspect brings desire, taste, attraction, confidence, and personal fulfillment together: pleasure wants more scale.
Mars in Cancer remains a reliable combination even without a birth time. Mars describes action, courage, competition, and effort, with Cancer style: memory, protection, belonging, and family sensitivity.
Concretely, the person expresses action, anger, courage, competition, and effort through the Cancer style (memory, protection, belonging, and family sensitivity). Exact aspects and repeated patterns indicate whether this theme becomes central.
Mars sextile Lilith (orb 0.8°) shows active cooperation between the two planets. The orb is extremely tight; this aspect is one of the chart's strongest signals.
Here, Mars in Cancer brings action, courage, competition, and effort with Cancer style (memory, protection, belonging, and family sensitivity); Lilith in Virgo brings pure ideal, absolute demand, fascination, and refusal of compromise with Virgo style (precision, method, usefulness, and attention to detail).
Concrete cooperation: action can cooperate with Lilith's ideal as a deliberate decision force.
Same aspect, other side: the full reading is under the other planet, and it also applies to Mars.
Mars square Neptune (orb 2.8°) creates concrete friction between the two planets. The orb is tight enough to count in the main reading.
Here, Mars in Cancer brings action, courage, competition, and effort with Cancer style (memory, protection, belonging, and family sensitivity); Neptune in Libra brings imagination, image, popularity, collective moods, and inspiration with Libra style (relationship, balance, negotiation, and sense of form).
Concrete friction: this aspect creates tension between action, the wish to act, image, vagueness, ideal, and scattered energy.
Mars conjunct Uranus (orb 4.6°) brings the two planets out together. The orb is moderate; it stays secondary beside tighter signatures.
Here, both planets use the same Cancer style (memory, protection, belonging, and family sensitivity). Mars in Cancer brings action, courage, competition, and effort; Uranus in Cancer brings disruption, independence, and change.
Concrete effect: this aspect combines action, speed, risk, rupture, and refusal to be controlled.
Mars square Saturn (orb 2.8°) creates concrete friction between the two planets. The orb is tight enough to count in the main reading.
Here, Mars in Cancer brings action, courage, competition, and effort with Cancer style (memory, protection, belonging, and family sensitivity); Saturn in Libra brings discipline, constraint, endurance, and mastery with Libra style (relationship, balance, negotiation, and sense of form).
Concrete friction: this aspect creates tension between action and inhibition: Mars wants to act, Saturn restrains, delays, judges, or blocks, which can produce frustration, heavy effort, or held-in anger.
Jupiter in Gemini remains a reliable combination even without a birth time. Jupiter describes personal fulfillment, confidence, encouragement, and broader horizons, with Gemini style: curiosity, language, movement, and mental adaptation.
Concretely, the person expresses personal fulfillment, confidence, and opening of horizons 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 Jupiter.
Jupiter trine Saturn (orb 4.9°) shows positive structural ease between the two planets. The orb is moderate; it stays secondary beside tighter signatures.
Concrete support: this aspect gives ease growing without losing structure.
Jupiter trine Neptune (orb 5°) 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 personal fulfillment and collective imagination: confidence, inspiration, story, and popularity can reinforce each other.
Saturn in Libra remains a reliable combination even without a birth time. Saturn describes discipline, constraint, endurance, and mastery, with Libra style: relationship, balance, negotiation, and sense of form.
Concretely, the person expresses discipline, limits, duty, fear, and long construction 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: Saturn conjunct Neptune (orb 0.1°). Aspect effect: brings hard structure, limits, dream, image, and collective inspiration together.
Saturn conjunct Neptune (orb 0.1°) 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 Libra style (relationship, balance, negotiation, and sense of form). Saturn in Libra brings discipline, constraint, endurance, and mastery; Neptune in Libra brings imagination, image, popularity, collective moods, and inspiration.
Concrete effect: this aspect brings hard structure, limits, dream, image, and collective inspiration together.
Saturn sextile Pluto (orb 1.0°) shows active cooperation between the two planets. The orb is extremely tight; this aspect is one of the chart's strongest signals.
Here, Saturn in Libra brings discipline, constraint, endurance, and mastery with Libra style (relationship, balance, negotiation, and sense of form); Pluto in Leo brings crisis, power, survival, and regeneration with Leo style (presence, pride, creation, and the wish to be seen).
Concrete cooperation: this aspect shows active cooperation between Saturn (discipline, constraint, endurance, and mastery) and Pluto: the person can use pressure or difficult situations as a resource.
Saturn square Uranus (orb 1.8°) creates concrete friction between the two planets. The orb is very tight; this describes a stable character pattern more than a passing reaction.
Here, Saturn in Libra brings discipline, constraint, endurance, and mastery with Libra style (relationship, balance, negotiation, and sense of form); Uranus in Cancer brings disruption, independence, and change with Cancer style (memory, protection, belonging, and family sensitivity).
Concrete friction: this aspect puts Saturn (discipline, constraint, endurance, and mastery) and Uranus (disruption, independence, and change) into repeated friction: one can interrupt, inhibit, or provoke the other 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 Cancer remains a reliable combination even without a birth time. Uranus describes disruption, independence, and change, with Cancer style: memory, protection, belonging, and family sensitivity.
Concretely, the person expresses freedom, disruption, broken rhythms, and the need for independence through the Cancer style (memory, protection, belonging, and family sensitivity). 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.
Same aspect, other side: the full reading is under the other planet, and it also applies to Uranus.
Neptune in Libra remains a reliable combination even without a birth time. Neptune describes imagination, image, popularity, collective moods, and inspiration, with Libra style: relationship, balance, negotiation, and sense of form.
Concretely, the person expresses imagination, image, popularity, and the ability to read collective currents 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 Neptune.
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 Leo remains a reliable combination even without a birth time. Pluto describes crisis, power, survival, and regeneration, with Leo style: presence, pride, creation, and the wish to be seen.
Concretely, the person expresses crisis, power, sexuality, survival, and transformation through the Leo style (presence, pride, creation, and the wish to be seen). 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 Virgo remains a reliable combination even without a birth time. Lilith describes pure ideal, absolute demand, fascination, and refusal of compromise, with Virgo style: precision, method, usefulness, and attention to detail.
Concretely, the person expresses the pure ideal, absolute demand, desire, fascination, and what refuses to become ordinary 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 Lilith.
Same aspect, other side: the full reading is under the other planet, and it also applies to Lilith.
