Free Part of Fortune Calculator

The Part of Fortune, also known as the Lot of Fortune, derives its zodiacal position from the Ascendant and the two luminaries. Its Greek name is klēros tychēs. Hellenistic authors used it for testimony about the body, livelihood, possessions, and conditions that arrive through circumstance. Vettius Valens calls it “the most influential and most potent place” and places life and livelihood under Fortune together with the Ascendant.[1] Paulus Alexandrinus associates Fortune with the Moon and assigns it the body, the course of livelihood, possessions, reputation, and privilege. These topics give the lot more range than the modern shorthand of luck. A Fortune placement supplies one line of testimony about material and bodily conditions; it does not promise wealth, health, or ease.[2][14]

Traditional authors use Fortune and the Lot of Spirit together when a question joins circumstance with response. Fortune supplies bodily and circumstantial testimony. Spirit supplies testimony about mind, intention, and deliberate action within those conditions.[1][14]

Chart sect decides which luminary begins the arc. With the Sun above the local horizon, measure from Sun to Moon. With the Sun below it, measure from Moon to Sun. Dorotheus and Paulus state this reversal directly.[2][3]

The night formula through the sources

The instruction transmitted under the names of Nechepso and Petosiris reached later readers in obscure wording, and authors drew different rules from it.[1][14][15] Dorotheus, Paulus, Valens, and Firmicus read Fortune as reversing by sect. So do the surviving horoscopes.[1][2][3][6][10]

Ptolemy kept one fixed Sun to Moon arc for both day and night. His authority carried that reading through the Renaissance, and it became the default in much modern software.[4][8][14]Ibn Ezra is the only earlier author Lusby’s survey identifies on Ptolemy’s side.[9]Valens’s own chapter adds a Moon above the horizon condition to the night formula, yet his surviving examples never apply it.[1][9][14]

When another night result differs, begin with the formula shown for the chart. Then compare the recorded birth time, the Sun’s relation to the local horizon, the zodiac, and the rounding method. House systems divide the same longitude differently, so the Fortune degree can stay fixed while its reported house changes.

Consider a day chart with the Ascendant at 23°20′ Virgo, the Sun at 14°10′ Gemini, and the Moon at 8°50′ Aquarius. Converting those positions to a 360 degree scale gives 173°20′, 74°10′, and 308°50′. For day Fortune, calculate 173°20′ + 308°50′ − 74°10′ = 408°00′. Subtract 360° to return to the zodiac. The result is 48°00′ absolute longitude, or 18°00′ Taurus. For day Spirit, 173°20′ + 74°10′ − 308°50′ = −61°20′; add 360° for 298°40′, or 28°40′ Capricorn.

The reversed row also reproduces the day Spirit result, while Ptolemy’s unreversed nighttime Fortune stays at 18°00′ Taurus and occupies the sect reversed Daimon position, the collision noted by Rhetorius and Holden.[10]

ANISE provides the luminary positions from JPL DE440s data. The Ascendant calculation combines ecliptic obliquity with the recorded coordinates and time. The Sun’s position relative to the resulting local horizon fixes sect. The reported degree belongs to the zodiac before any house division is applied. This page assigns its whole-sign house by counting the rising sign as house one, then advancing one house per sign. A quadrant system may move that unchanged degree into an adjacent house.

An uncertain recorded time near sunrise or sunset can place the Sun on either side of the horizon, changing chart sect and selecting the opposite Fortune formula. The birth time rectification tool can help assess which result the evidence supports.

The Fortune calculation projects the luminary arc in one direction. The Lot of Spirit calculator projects it in the other. Ancient sources place Fortune with lunar topics of body and livelihood, while Spirit takes solar topics of mind and intentional action. Their longitudes mirror one another around the Ascendant.[2][7][14]

The lunar phase determines the pair’s geometry. At conjunction, Fortune and Spirit meet near the Ascendant. At opposition, both meet near the Descendant. During the quarter phases, they face each other across the zodiac. Their mirrored arcs do not create a permanent opposition.[1][8][14]

Greenbaum’s census covers 326 surviving Greek horoscopes. Eighty-eight compute Fortune, with two further partial cases, for a total of 90. Thirty-three compute Daimon. Fortune is the most frequently calculated lot in that corpus.[5] P. Lond. 130, Greek Horoscopes No. 81, adds the unreversed arc and says that people who place the lot by subtraction do so through ignorance. The editors answer that the sect-reversed rule was followed in practice. Whether that nativity was diurnal or nocturnal remains unsettled, so the document cannot resolve the formula dispute.[6]

The Oxyrhynchus papyri preserve calculations of Fortune and Daimon as a pair. Jones describes nocturnal Fortune as the same distance behind the Ascendant that the Moon is ahead of the Sun, with Daimon mirrored ahead of the Ascendant. These are working chart documents rather than later reconstructions.[7]Valens quotes the formula from the thirteenth book of Nechepso “the King” and names Petosiris as a companion authority. Hephaistio preserves the projection rationale and the ambiguity that later readers handled differently. Dorotheus is the earliest surviving author to use the lot.[1][3][15]

The Greek tychē names fortune or chance, and klērosnames a lot, an allotted share. Most authorities associate Fortune with the Moon. Olympiodorus reports that Hermes Trismegistus affiliates Fortune with the Moon; Firmicus records Abraham’s name “Place of the Moon”; Abu Ma’shar calls it the Moon’s lot and Ascendant.[5][10][12]Abu Ma’shar also records a naming disagreement. Some masters called Fortune the Lot of the Sun and called the paired lot the Lot of the Moon. The formula identifies the point more reliably than the alternate planetary title.[12]

The Greek klēros became Latin sors, another word for lot. Holden traces the later use of pars, or part, to degree-based calculation in Latin. Part of Fortune and Lot of Fortune therefore name the same calculated point.[10]

The label “Arabic Parts” arose when European astrologers saw one lot in Ptolemy and many in Arabic sources, then credited the larger system to Arabic authors. Greek sources already preserve multiple lots, including the seven in the Panaretos attributed to Hermes Trismegistus. The label describes the transmission history poorly.[2][5][10]

Some astrologers treated the sign containing Fortune as a second first place, then counted the remaining places from it. Valens gives special attention to the eleventh from Fortune as the Place of Acquisition and to the eighth from Fortune in judgments about death. These are historical delineation rules and do not provide a standalone prediction of wealth or lifespan.[6][14]

The breadth of this practice is disputed. Holden says other astrologers generally gave places from Fortune the standard meanings used from the Ascendant. The surviving record also contains differentiated meanings, including acquisition in the eleventh and death in the eighth. The surviving record leaves that conflict unresolved.[6][10][14] Manilius uses Fortune as the moving anchor of a twelve-part athlacircle. Each following lot carries its own subject. Holden argues that Manilius’s special meanings had no later impact, while his own footnote calls Fortune-based houses a standard practice.[10][13]

The scheme is documented; its influence remains disputed.[10][13]

Hyleg candidacy. Fortune is one candidate in the medieval hyleg procedure. In Umar al-Tabari’s sequence, a preventional birth following a full moon brings Fortune forward as the Moon’s Ascendant, while a conjunctional birth begins with the Ascendant. The candidate must occupy a permitted place and receive testimony from one of its dignity lords. When no candidate qualifies, the procedure returns no hyleg. The hyleg calculator applies that bounded procedure.[11]

Annual profection. Abu Ma’shar’s revolution method records the sign reached from the natal Ascendant and the sign reached from the natal Lot of Fortune. This makes Fortune a second annual starting point in that procedure.[11]

Elections. Al-Kindi advises placing the lord of the Ascendant with Fortune and judging the lot in relation to the Moon. The lot therefore participates in choosing a beginning rather than serving only as a natal placement.[11]

The twelve natal places. Masha’allah devotes a chapter to Fortune in each of the twelve places of the natal chart. His method joins placement with the condition of the lot and its ruler.[11]

Valens begins zodiacal time periods from Fortune or Daimon. A surviving example starts from Fortune in Pisces and assigns years, then months, days, and hours as the sequence moves through the signs. Releasing from Fortune is one documented branch of the technique; the sources do not make it the sole starting point.[1][6]Fortune releasing is read for bodily, livelihood, and circumstantial topics. Augurine marks a peak when the active sign reaches Fortune itself or the fourth, seventh, or tenth sign counted from Fortune. This four-angle treatment follows Brennan’s modern reconstruction of the ancient Fortune-derived place material. The angles are counted from Fortune rather than from the natal Ascendant.[14]

A peak period marks increased activity within this timing method. It does not guarantee money, health, or a specific event. The zodiacal releasing calculator calculates the complete sequence and its subperiods.