Star Sign · free online 玄学命理 tool
Find your star sign by birthday, with its element, ruling planet and matching signs. No install, opens instantly, works offline — data stays in your browser.
How to use Star Sign
- Open this page (or search “Star Sign” on www.258tool.com).
- Enter your input in the tool panel — results update instantly.
- Copy, download or save as needed; your data is stored locally on this device.
FAQ
How accurate is this? Where does the data come from?
Every tool page states its method. The lunar calendar, stems and branches, and solar terms are computed with astronomical algorithms standardised in GB/T 33661-2017 (implemented in the open-source lunar-javascript library), so results are reproducible and verifiable. Element cycles and nayin come from fixed reference tables you can check line by line.
Is this fortune telling? Does it predict the future?
No. This only computes traditional rules — it derives the stems, branches, elements and nayin, and predicts nothing. Tarot, lot drawing and daily fortune are excluded because they would require inventing results.
Should I base decisions on the output?
No. Chinese metaphysics is cultural and folkloric, with no scientific basis. It is a doorway into traditional culture, not a basis for decisions.
Reference黄道十二宫划分源于古巴比伦;日期边界采用国际通行的热带黄道划分法