How to Read Relationship Charts: Synastry, Composite, Davison, and Marks

The Bilibili video by 连青lotus was published on April 6, 2025 and runs for about 30 minutes. Its title brings comparison, composite, time-space, and Marks charts into one case-based lesson, making it a useful map before choosing a chart type in Horosa.

In this article, “relationship chart” is an umbrella term for several astrological methods, not one fixed chart. This is not a transcript and does not reproduce the video cases. It uses that four-chart framework to build a Horosa workflow: verify both birth records, choose a chart from the question, and ask AI to separate chart facts from interpretation and missing information.

A relationship chart does not replace either natal chart. Communication styles, emotional needs, boundaries, and real decisions still belong to two separate people; relationship techniques compare or derive information from those two inputs.

Check both dates, times, locations, time zones, zodiac settings, and house systems. When one birth time is uncertain, reduce the weight given to angles, houses, and time-space-derived charts, and keep that uncertainty visible in the case note.

A comparison chart places two natal charts in relation to each other and examines cross-chart aspects, house overlays, and related contacts. It is best suited to questions about where two people may attract, support, misunderstand, or pressure each other.

Horosa keeps A-to-B and B-to-A contacts distinct, including aspects, midpoints, antiscia, and contra-antiscia in its comparison output. Preserve that direction in your notes. A contact is an interpretive clue, not proof of what someone privately thinks or promises.

A midpoint composite is commonly built from the midpoints of the same planets and angles in two natal charts. It belongs to neither person and is not a third natal chart; astrologers use it to discuss recurring themes in the relationship as a unit.

Use it when the question concerns how the partnership operates, handles tension, or appears as a team. Whether either person chooses to participate still has to be checked against the natal charts, synastry, communication, and observable behavior.

In relationship-astrology literature, a time-space midpoint chart is generally built from the midpoint of two birth dates, times, and locations; the chart family is commonly called a Davison Relationship Chart in English. Horosa provides the corresponding chart type. It and the composite can both frame the relationship as a whole, but they do not start from the same calculation.

Because a Davison-style chart directly depends on time and geography, birth-time precision, time-zone handling, and location matter. If the input is only “sometime in the morning,” keep more than one candidate rather than presenting one exact-looking chart as exact evidence.

The video uses the Chinese shorthand 马盘, while Horosa labels the feature 马克斯盘. Horosa produces separate A and B results from each natal input and the shared time-space relationship point, giving a directional view for each person.

Marks chart is not as standardized a term in English-language practice as synastry, composite, or Davison chart. Chinese sources also vary in shorthand and interpretation, and software may differ in midpoint, house, or time-space handling. Record the software, version, calculation settings, and A/B direction; use it to organize possible differences in perspective, not to certify private thoughts, love, loyalty, or commitment.

Use the Comparison chart for interaction, Composite for the relationship as a shared unit, Time-Space for a Davison-style relationship chart, and Influence or Marks views for directional exploration. You do not need every chart for every question.

A practical session uses one main question and one main chart, with at most one supporting chart. Horosa lets you switch chart types while keeping the same A/B records, and its structured AI snapshot can preserve source charts, zodiac and house settings, aspects, and calculated chart data without manual transcription.

AI can organize cross-chart contacts, shared themes, directional differences, and follow-up questions. It should not announce who loves more or make commitments on someone else's behalf. Keep the chart type, A/B labels, data accuracy, and calculation settings in the input.

Review both natal charts and data quality first. Narrow the question to one subject such as communication, cooperation, emotional response, or the relationship as a unit. Choose one main chart, record the exact chart evidence, then use AI to organize interpretations, counterexamples, and unresolved inputs.

The video provides an entry point into the chart types; Horosa keeps the chart, settings, and notes in one workspace. The useful outcome is not a confident relationship verdict, but a record that can return to its inputs, preserve both directions, and change when real-world feedback contradicts it.