Encyclopedia · Arabic parts
The Part of Fortune: where life makes things easier for you
The Part of Fortune is not a planet but a calculated point, the most famous of the “Arabic parts”. It combines your three pillars, Ascendant, Moon and Sun, and points to the sign and house where things flow, where your efforts pay more than elsewhere. Here is its formula, a worked example, and its reading in every sign and every house.
What is the Part of Fortune?
The Arabic parts, also called “lots”, are sensitive points obtained by adding and subtracting the longitudes of three factors of the chart. They come from Hellenistic astrology and were passed on and developed by Arabic-speaking astrologers in the Middle Ages, hence their name. The Part of Fortune (Pars Fortunae) is the oldest and the most used: it unites the three pillars of the person, the Ascendant, the Moon and the Sun, in a single point that only exists once the birth time is known.
Its meaning is fortune in the old sense: what happens to you favourably, what prospers without forcing, the area where the body and circumstances cooperate. It is not a guaranteed financial gain nor a lucky charm: it is the place in the chart where your nature (the Sun), your needs (the Moon) and your way of approaching life (the Ascendant) meet and agree. Investing there pays off.
The formula: day and night
For a day birth, Sun above the horizon, the Part of Fortune equals Ascendant + Moon − Sun. For a night birth, Sun below the horizon, it is reversed: Ascendant + Sun − Moon. In both cases ecliptic longitudes (0° to 360°) are added and the result is brought back between 0° and 360°: the Part therefore has a sign, a degree and a house, exactly like a planet. The Sun is above the horizon when it occupies houses 7 to 12, that is from the Descendant to the Ascendant through the Midheaven.
Two schools coexist. Hellenistic astrology and the Arabic tradition distinguish day and night, and this “sect” rule has come back strongly with the rediscovery of the ancient texts. Many modern books and programs apply the day formula to everyone, for simplicity: it was the most widespread usage in the twentieth century. For a day birth both give the same point; for a night birth they give two different points, often in two different signs. It is worth knowing which one you are reading: the sect formula is the most faithful to the origin, the day formula the most common in printed charts.
Day birth: Ascendant + Moon − Sun
Night birth: Ascendant + Sun − Moon
Ecliptic longitudes from 0° to 360°; the result is brought back between 0° and 360°. Without a birth time there is no Ascendant, hence no Part of Fortune.
A worked example
Camille, a fictional person born in Lyon on 12 May 1990 at 2:30 pm. Her chart gives the Ascendant at 9°12′ Virgo, that is 159°12′ of longitude; the Moon at 21°06′ Sagittarius, that is 261°06′; the Sun at 21°31′ Taurus, that is 51°31′. The Sun is in the 9th house, above the horizon: it is a day birth, and the formula is Ascendant + Moon − Sun.
The calculation: 159°12′ + 261°06′ − 51°31′ = 368°47′. Subtract 360°: 8°47′. Camille’s Part of Fortune is at 8°47′ Aries, in her 8th house (the 8th cusp is at 1°59′ Aries, the 9th at 0°25′ Taurus). If the night formula were wrongly applied, the result would be 9°37′ Aquarius in the 5th house: a completely different message, hence the importance of knowing whether the Sun was up.
For Hugo, born in Bordeaux on 3 November 1992 at 8:15 am with the Sun in the 12th house (also a day birth), the same formula gives 26°07′ Aquarius in the 3rd house. On your own chart, take the exact longitudes from the positions table: the Part is calculated in one line.
The Part of Fortune in the twelve signs
The sign of the Part says how things come to you easily: the style of your luck.
Part of Fortune in Aries
Fortune comes from taking the initiative: things open up when you start fast, decide alone and dare the first step. Waiting works against you, momentum works for you. The body enjoys effort and movement; an action launched boldly pays more than an over-weighed strategy. Invest in what takes courage: that is where life answers.
Read the Aries signPart of Fortune in Taurus
Fortune comes from building patiently: what lasts, what can be touched, what is cultivated succeeds for you. Money, land, comfort, craft and anything requiring constancy are favourable grounds. Gains come slowly but hold. Invest in regularity and in your senses: stability is your luck.
Read the Taurus signPart of Fortune in Gemini
Fortune comes through words, contacts and curiosity: a conversation, a meeting, a new skill open doors no plan would have foreseen. You gain by moving, writing, connecting people. Invest in your network and in what you can explain: your luck circulates.
Read the Gemini signPart of Fortune in Cancer
Fortune comes through home, family and care: you prosper when you have a base, a place of your own, loved ones to protect. Intuition guides material choices well. What you nurture nurtures you in return. Invest in what makes you feel at home: security is your luck.
Read the Cancer signPart of Fortune in Leo
Fortune comes from showing yourself: creativity, the stage, pleasure and generosity succeed for you. Things open up when you own your place and your light. You gain by doing things big and warm. Invest in what you truly love and in what makes you proud: radiance is your luck.
Read the Leo signPart of Fortune in Virgo
Fortune comes through work well done, competence and service: what you improve prospers. The details others neglect are your deposits. Your luck looks like method: discreet and reliable. Invest in your know-how and your health: usefulness is your luck.
Read the Virgo signPart of Fortune in Libra
Fortune comes through others: partnerships, the couple, agreements and beauty succeed for you. You prosper in pairs, in fair exchange and aesthetics. A fair relationship often opens the material door. Invest in your partnerships and in your taste: harmony is your luck.
Read the Libra signPart of Fortune in Scorpio
Fortune comes through depth and transformation: crises weathered, shared resources, what is rebuilt after an ending. You gain where others dare not go. Inheritances in the broad sense (knowledge, money, trust) matter. Invest in what requires total commitment: intensity is your luck.
Read the Scorpio signPart of Fortune in Sagittarius
Fortune comes from afar: travel, studies, foreign places, convictions and teaching succeed for you. You prosper by widening the horizon, learning and passing on. Optimism attracts opportunities. Invest in what makes you grow and move: meaning is your luck.
Read the Sagittarius signPart of Fortune in Capricorn
Fortune comes through structured effort and time: long careers, responsibilities, projects built to last succeed for you. It often arrives later than for others, but it holds. Invest in what you can master and make last: endurance is your luck.
Read the Capricorn signPart of Fortune in Aquarius
Fortune comes through the collective and originality: friends, networks, new ideas, causes and technology succeed for you. What is different about you is an asset, not a flaw. Invest in what makes you free and in what brings people together: independence is your luck.
Read the Aquarius signPart of Fortune in Pisces
Fortune comes through intuition, empathy and imagination: art, care, spirituality and everything that moves people succeed for you. Things often arrive without apparent effort, through a meeting or a hunch followed. Invest in what inspires you and in those you help: trust is your luck.
Read the Pisces sign
The Part of Fortune in the twelve houses
The house of the Part says the area of life where circumstances cooperate. It requires the birth time.
Part of Fortune in the 1st house
The self, appearance and vital drive
In the 1st house, luck lies in yourself: your presence, your body, the way you walk into a room open doors. The more you are yourself, the more things come. Look after your vitality: it is your capital.
Read the 1st housePart of Fortune in the 2nd house
Money, resources and self-worth
In the 2nd house, resources prosper: money earned through your talents, possessions, material security. You know how to make what you have grow. Invest in your own skills rather than in what depends on others.
Read the 2nd housePart of Fortune in the 3rd house
Communication, learning and close surroundings
In the 3rd house, fortune comes through communication, short studies, siblings, local travel. Writing, speaking, learning and connecting people pay. A conversation can change your situation.
Read the 3rd housePart of Fortune in the 4th house
Home, roots and family
In the 4th house, home, family and property are favourable: you prosper at home, from your roots, in the house you build. The second half of life is often easier than the first.
Read the 4th housePart of Fortune in the 5th house
Creativity, love and pleasure
In the 5th house, creativity, love, children and pleasure succeed for you: what you do out of joy pays more than what you do out of duty. Play, art and the stage are fertile grounds.
Read the 5th housePart of Fortune in the 6th house
Daily work, health and service
In the 6th house, daily work, service, health and well-kept routines are your luck: competence always ends up paying. A good working environment makes you prosper; a bad one costs you double.
Read the 6th housePart of Fortune in the 7th house
Partnership, associations and contracts
In the 7th house, fortune comes through others: the couple, partners, clients, contracts. You gain in pairs. The choice of your partners is the most profitable choice of your life.
Read the 7th housePart of Fortune in the 8th house
Transformation, sexuality and shared resources
In the 8th house, shared resources, inheritances, transformations and intimacy are favourable: you prosper after crises and thanks to what others entrust to you. What ends often opens something bigger.
Read the 8th housePart of Fortune in the 9th house
Travel, higher learning and philosophy
In the 9th house, foreign places, higher education, teaching, publishing and convictions succeed for you: your luck is far from your starting point. Travelling, learning and passing on pay.
Read the 9th housePart of Fortune in the 10th house
Career, vocation and social achievement
In the 10th house, career and reputation are favourable: public recognition comes, often through hard work, and responsibilities succeed for you. Aim high, the role carries you.
Read the 10th housePart of Fortune in the 11th house
Friendships, collective projects and ideals
In the 11th house, friends, networks, collective projects and causes succeed for you: a friendship or a group often opens the door. Your luck is shared; it multiplies by being given.
Read the 11th housePart of Fortune in the 12th house
The unconscious, retreat and spirituality
In the 12th house, fortune is discreet and inward: chosen solitude, care, spirituality, behind-the-scenes work prosper. What comes to you often arrives quietly, through unexpected help. Protect your inner world: it is your reserve.
Read the 12th house
How to use the Part of Fortune
The Part of Fortune does not act like a planet: it has no energy of its own, it indicates a place. Its sign says the style of what succeeds for you, its house the area. When you hesitate between two directions, the one that activates the house of your Part is usually the smoother one. A planet in conjunction with the Part (within three degrees) strongly colours that place and makes it a major asset of the chart.
Read it with its ruler too: the planet that governs the sign of the Part, its position and its aspects say how this ease takes shape. And watch the transits: Jupiter or the Sun passing over your Part of Fortune often mark periods when things open up in that area, without having to force.
Where is your Part of Fortune?
Calculate your chart for free: take the exact longitudes of the Ascendant, the Moon and the Sun from the positions table, find the Sun’s house, and apply the formula above.
Frequently asked questions
How do I calculate my Part of Fortune?
Take the longitudes of the Ascendant, the Moon and the Sun (0° to 360°). Day birth, Sun above the horizon (houses 7 to 12): Ascendant + Moon − Sun. Night birth: Ascendant + Sun − Moon. Bring the result back between 0° and 360°: you have the sign and degree of the Part, then its house from the cusps. All these values are on your chart page.
Day formula or night formula?
The Hellenistic and Arabic tradition distinguishes the two according to the Sun’s position, and it is the reading most faithful to the origin. Many modern programs and books apply the day formula to every birth, for simplicity. For a day birth both coincide; for a night birth they give two different points.
Does the Part of Fortune predict money?
Not directly. It points to the area and the style where circumstances favour you and where your efforts pay more than elsewhere. That can concern money if it is in the 2nd or 8th house, but also relationships, creativity, studies or health depending on its house. It is an indicator of ease, not a promise of gain.
Can the Part of Fortune be calculated without a birth time?
No: it depends on the Ascendant, which depends on the time and place. Without a time, the site calculates the chart at noon and shows neither Ascendant nor houses; the Part of Fortune cannot be determined. Find your time on your full birth certificate.