Co-Ascendant
Co-Ascendant: an auxiliary ascensional angle whose formula and naming convention must be declared. Covers calculation, one case, alternatives, and limits.
Overview
Co-Ascendant: Support for this interpretation requires repeated evidence that the selected construction is named, its equation can be reproduced, and results are compared with alternatives that carry the same label. The guide keeps the calculated field separate from one bounded illustration, an ordinary alternative, and a stop rule.
At a glance
- Reading focus
- Use an auxiliary ascensional angle whose formula and naming convention must be declared as an interpretive question, not a measured trait or promised event.
- Meaning boundary
- Co-Ascendant is a calculated angle or point, not a planet, concerned with an auxiliary ascensional angle whose formula and naming convention must be declared. Its longitude depends on the declared geometry or formula and carries no physical agency.
- Evidence to check
- Keeps the selected co-Ascendant formula distinct from the Ascendant and East Point. Support for this interpretation requires repeated evidence that the selected construction is named, its equation can be reproduced, and results are compared with alternatives that carry the same label.
- Calculated chart fields
- Co-Ascendant longitude from birth time, coordinates, and the declared formula
Definition and scope
Co-Ascendant is an auxiliary time-and-place-dependent calculated point, not a planet. Confirm the geometry before traditional symbolism about an auxiliary ascensional angle whose formula and naming convention must be declared. Reproduce its longitude from the declared time, place, and calculation convention.
Calculated points have no planetary domicile, exaltation, sect, joy, station, or retrograde cycle. Read the formula, longitude, sign, house, axis partner, close aspects, house system, and birth-time reliability; never infer a partner, vocation, fated meeting, or guaranteed event from one point.
Evidence and method
Co-Ascendant is knowledge-only in OpenFate and is not returned as a product calculation.
Example and near-miss
Illustrative case, not proof: A researcher compared two historical astrology programs that both printed “Co-Ascendant.” One derived an auxiliary angle from local ascensional geometry; the other used a different named construction. Their results differed by sixteen degrees. She documented each formula, retained the first only for a study tied to that source, and labeled it unsupported in the live OpenFate chart rather than substituting the Ascendant. The example shows that a familiar name does not identify a calculation method.
Variants and context
Modifiers and context: Name the source, formula, time and place inputs, zodiac, normalization, and distinction from Ascendant and East Point. If the engine lacks the selected construction, report unavailable.
Near-miss and alternative: A degree close to the ordinary Ascendant may tempt an analyst to treat the two as confirmed. Nearness can be accidental and does not make formulas equivalent.
Limits and verification
Stop rule: Treat this auxiliary angle as knowledge-only unless explicit product support is present. Do not infer personality, body, destiny, status, or a second rising sign.
Co-Ascendant uses OpenFate editorial synthesis for traditional symbolism; it is not scientific evidence or a causal claim.
Sources and editorial basis
- Faculty of Astrological Studies: Foundation CourseFoundation Course, H2 “Module 1: Introduction to Astrology: Planets, Signs and Houses”, H2 “Module 2: Chart Skills I”, H2 “Module 3: Chart Skills II”, and H2 “Foundation Practice Module (three months tuition time)”; Module 1 key topics cover planets, zodiac signs, and twelve houses, while Module 2 covers aspects and aspect patternsA practitioner curriculum used to scope the chart vocabulary and the order in which planets, signs, houses, aspects, patterns, and synthesis are taught; it is not scientific validation.
- NCGR-PAA Level II CurriculumNCGR-PAA Level II Curriculum, Part 1 sections I–IV and Part 2 chart synthesis requirements, pp. 1–5A professional astrology curriculum covering astronomy, chart calculation, house systems, dignity, rulership, transits, progressions, and synthesis; it records practice standards rather than empirical proof.
- OpenFate Astrology Editorial Synthesis DisclosureEditorial Methodology stable sections #editorial-principles, #editorial-workflow, #editorial-ai, and #editorial-contextOpenFate disclosure for page-specific symbolic prose: each meaning is editorial synthesis of interpretive tradition, not scientific evidence. Public curricula scope vocabulary; ephemeris and time sources validate only calculations.
- Swiss Ephemeris Programmer’s ManualSwiss Ephemeris Programmer’s Manual 2.10, sections 1 “programming steps”, 3 “Planetary Positions”, 8 “Date and time conversion”, 14 “House cusp calculation”, 15 “House position”, and 16 “Sidereal time”The Swiss Ephemeris programming manual used for geocentric ecliptic positions, Julian-day inputs, house cusps, and Ascendant/MC calculations. Numerical positions are reproducible outputs; symbolic meanings are a separate tradition.
- IANA Time Zone Databasetz database theory.html, section “Scope of the tz database” and historical civil-time transitionsThe maintained source for current and historical civil-time offsets and daylight-saving transitions; it provides timekeeping facts, not astrological interpretation.
- US Naval Observatory: Sidereal TimeUSNO “Sidereal Time”, sections “Apparent Sidereal Time” and input notes for date, UT, and longitudeAn official service distinguishing Greenwich and local mean and apparent sidereal time and their required UT1 input.
- OpenFate Calculation and AI Validation DisclosureCalculation Validation stable sections #calculation-interpretation, #verification-controls, and #methodology-limitsOpenFate’s public calculation-first method separates normalized birth inputs, reproducible chart results, AI-assisted explanation, verification, and limits. It does not list every Western-astrology setting; check the current feature or support page for available calculations.