Ascendant, Descendant, MC, and IC in Synastry
Angle synastry examines another person’s bodies on the Ascendant, Descendant, Midheaven, or Imum Coeli of a time-reliable natal chart. Scope is explicit.
Overview
B Sun conjoins A Ascendant by 2°; the angle belongs to A and depends on A’s recorded time. This is the worked result for Ascendant, Descendant, MC, and IC in Synastry; it remains conditional and does not turn geometry or timing into a verdict. The comparison method is explicit: Recompute both angle sets from the recorded time and place, measure each directed contact, and record whether a small time shift changes the result.
At a glance
- Topic
- Ascendant, Descendant, MC, and IC in Synastry
- Content family
- relationship comparison
- Case inputs
- A ASC 2°♎ from verified time; B ☉ 4°♎; conjunction cap 4°
- Measured finding
- B Sun conjoins A Ascendant by 2°; the angle belongs to A and depends on A’s recorded time
- OpenFate support
- two-chart compatibility + birth chart
- Use boundary
- conditional · source-audited · non-fated
Definition and exact scope
Angle synastry examines another person’s bodies on the Ascendant, Descendant, Midheaven, or Imum Coeli of a time-reliable natal chart.
Calculation or decision rule
Recompute both angle sets from the recorded time and place, measure each directed contact, and record whether a small time shift changes the result. 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 ASC 2°♎ from verified time; B ☉ 4°♎; conjunction cap 4°. B Sun conjoins A Ascendant by 2°; the angle belongs to A and depends on A’s recorded time.
Illustrative near miss; does not qualify: Calculating an Ascendant contact for a person whose birth time is unknown.
School, model, and context variants
Unknown or approximate birth time makes angle contacts unstable; an apparent conjunction must not be reported as exact without a sensitivity check.
Product, safety, and verification boundary
OpenFate connects Ascendant, Descendant, MC, and IC in Synastry only to the two-chart compatibility flow and natal evidence; it does not score destiny or guarantee a relationship result. Ascendant, Descendant, MC, and IC in Synastry 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.