Scope limits & quick reference
Learn AstroOne’s supported Chinese Zodiac scope, with calculation boundaries kept separate from interpretation.
Quick reference: what the current engine actually provides
- Chinese New Year boundary-resolved year (verified table scope: 1900–2100 in the compatibility service)
- 12-year animal + Earthly Branch + polarity + primary branch element
- Birth-year element from the current 10-year stem-rhythm mapping
- Compatibility: selected branch tags + Five-Phase relation + deterministic product temperament dimensions
What the current simple Chinese Zodiac does not calculate
- Full Four Pillars / BaZi chart
- Month, day and hour pillars in the simple year-animal product
- Day Master, Ten Gods, hidden stems, luck pillars or full seasonal-strength analysis
- Guaranteed event prediction from one animal/year relation
Boundary and relationship vocabulary still have school/context choices
Official-calendar Chinese New Year and Lìchūn practice can differ. Treating two members of a 三合 group as a supportive pair is also not the same as a complete three-branch formation. Use rules with their source context visible.
Safe reading checklist
- 1. Resolve the calendar boundary before assigning the animal
- 2. Keep calculated output separate from interpretation
- 3. Separate traditional tags from AstroOne product labels
- 4. Do not turn one signal into a whole verdict
- 5. Keep the non-BaZi scope visible
Quick-reference self-check
- Input
Question: “I was born 5 February 1997. Am I automatically an Ox because the Gregorian year is 1997?”
- Calculation
No shortcut. First look up the 1997 Chinese New Year boundary in AstroOne’s verified table, then resolve the Chinese year and only then map the animal.
- Factors to inspect
Boundary date, resolved Chinese year, animal/branch and year element. If interpreting relationships, add only the relation categories actually needed.
- Reasoning
The mistake to avoid is assigning an animal from the Gregorian year number before checking the calendar boundary.
- Synthesis
After the animal is resolved, interpretation may discuss symbolic tendencies or relationships, but it must retain the year-animal scope and uncertainty.
A reliable Chinese Zodiac reading begins by getting the calendar year right; it does not begin with a personality paragraph.
Methodology sources
These are the main technical, historical or interpretive references used to verify the lesson. AstroOne behavior is cross-checked separately against the current implementation and verification checks.
- Hong Kong Observatory — The 12-Year Animal Cycle — Animal/branch reference
- Hong Kong Observatory — What year is it today? — Boundary convention and practice distinction
- Chinese Text Project — Sanming Tonghui — Traditional relationship categories