Composite Chart
A midpoint composite constructs one relationship chart from the shortest-arc midpoints of two sets of natal positions. Scope is explicit.
Overview
The composite Sun is 0°, with the 180° antipode disclosed as the alternate midpoint. This is the worked result for Composite Chart; it remains conditional and does not turn geometry or timing into a verdict. The comparison method is explicit: Declare the midpoint and angle convention, pair like points, resolve the 0°/360° wrap, and retain the result as a constructed chart rather than an observed sky.
At a glance
- Topic
- Composite Chart
- Content family
- relationship comparison
- Case inputs
- A ☉ at 350°; B ☉ at 10°; shortest-arc midpoint rule
- Measured finding
- the composite Sun is 0°, with the 180° antipode disclosed as the alternate midpoint
- OpenFate support
- knowledge reference only
- Use boundary
- conditional · source-audited · non-fated
Definition and exact scope
A midpoint composite constructs one relationship chart from the shortest-arc midpoints of two sets of natal positions.
Calculation or decision rule
Declare the midpoint and angle convention, pair like points, resolve the 0°/360° wrap, and retain the result as a constructed chart rather than an observed sky. The receipt retains the chosen input record, reference frame, tolerance, and version, then identifies the first step where an independent recalculation diverges.
Worked case and illustrative near miss
A ☉ at 350°; B ☉ at 10°; shortest-arc midpoint rule. the composite Sun is 0°, with the 180° antipode disclosed as the alternate midpoint.
Illustrative near miss; does not qualify: Averaging 350 and 10 to 180° without wrapping the zodiac chooses the antipode silently.
School, model, and context variants
Composite positions can violate real planetary elongation limits, so the chart is not a dated event chart and must not be treated as one.
Product, safety, and verification boundary
OpenFate publishes Composite Chart as an auditable knowledge reference and does not claim a dedicated calculator or generated result. Composite Chart preserves contrary observations and uncertainty. It cannot replace consent, professional help, location research, or a person’s account.
Sources and editorial basis
- NCGR-PAA Level III CurriculumNCGR-PAA Level III Curriculum, “Synastry” and “Solar Return”, pp. 2–3; “Classical Astrology: Timing”, p. 3; forecast bibliography, pp. 5–6The NCGR-PAA advanced curriculum lists the inputs, calculation distinctions, and synthesis steps taught for synastry, composite and Davison charts, solar and lunar returns, transits, progressions, solar arcs, and profections. It documents professional curriculum scope, not empirical validation.
- Astrodienst Comparative Astrology and Synastry ReferenceAstrowiki “Comparative Astrology”, section listing Synastry, Midpoint Composite, and Davison methods; “Synastry”, section “Methods”Astrodienst reference material distinguishing synastry overlays, midpoint composite charts, and Davison relationship charts. It is used for method ownership and calculation distinctions, not to certify attraction or compatibility.
- Organization for Professional Astrology: Code of EthicsOPA Code of Ethics §1(c) Accurate Data, §1(j) Fatalistic Statements and client autonomy, §1(k) Charts of Others, and §2(f) Scope of Practice and referralAn independent practitioner code covering accurate data, confidentiality, client welfare, informed practice, competence, and referral boundaries.