Two animals · their fixed branch coordinates
子辰
Rat and Dragon compatibility
Rat and Dragon sit 4 places apart on the twelve-branch circle. Their compatibility reading begins with that geometry, then adds the phases and trines attached to the two positions.
- Branch relation
- Shared trine
- Phase relation
- Earth controls Water
- Circle distance
- 4 of 6 steps
The coordinates beneath the animal names
Read the two branches first
The animal is the familiar label. The branch fixes the position, phase, polarity, month, double-hour and direction used by the comparison.
子
Rat
Zi · Yang Water
- Circle position
- 1 of 12
- Fixed phase
- Water
- Double-hour
- 23:00–00:59
- Month opens
- 大雪 Major Snow
- Direction
- North
- Trine phase
- Water
辰
Dragon
Chen · Yang Earth
- Circle position
- 5 of 12
- Fixed phase
- Earth
- Double-hour
- 07:00–08:59
- Month opens
- 清明 Clear and Bright
- Direction
- East-southeast
- Trine phase
- Water
Inside both branches · 藏干
What Rat and Dragon carry beneath the surface
Each Earthly Branch contains a fixed list of one to three Heavenly Stems. Comparing the two inventories shows whether this pair repeats an exact stem, shares only a phase, or keeps the two internal lists separate.
癸 Gui
Rat and Dragon both contain 癸 Gui. Internal phase overlap: Water.
Every matching set stays visible
The named branch relationships
Harmony, trine, meeting, clash, harm, break and punishment are different sets. A pair can appear in more than one, so no match replaces another.
Fixed branch phases · 十二支五行
Earth controls Water
Earth, carried by the second branch, regulates Water in the controlling cycle. That phase direction remains distinct from harmony, clash or another branch relation.
This is the phase fixed to each Earthly Branch. A birth year also has a stem phase — for example, Fire Rat or Metal Rat — which is a separate coordinate.
The three-branch groups around the pair
Both point to the Water trine
A trine is complete only when all three of its branches are present. One or two selected animals locate positions inside that group without inventing its missing members.
Water trine
From a year pair to a four-pillar chart
What this pair establishes — and what comes next
The comparison establishes the fixed relationship between 子 and 辰. It does not turn two birth-year animals into a verdict about the whole relationship. In a Four Pillars chart, branches also appear at the month, day and hour layers, and each occurrence meets the rest of both charts.

