Word origin · etymology
Japanese technical names with an English explanatory label.
Onmyōdō is the way of yin-yang/divination; Sukuyō uses mansion-and-luminary characters 宿曜. The numbered mansion label is an English description of the calendrical divisions.
Hayashi and Hayek: Editors’ Introduction, Onmyōdō ↗Japanese Buddhist Astrology and Astral Magic — Jeffrey Kotyk, 2018 ↗
How we know · epistemology
System-specific sources and conventions
This entry covers Onmyōdō / Sukuyō / 27–28 mansion systems. Its cited texts document the methods or teachings being compared; any computed result depends on the stated inputs and rules. Historical attestation and reproducible arithmetic do not by themselves test a personal interpretation.
Japanese Buddhist Astrology and Astral Magic — Jeffrey Kotyk, 2018 ↗Tibetan calendar mathematics — Svante Janson, Uppsala University ↗
Connected concepts
Browse other concepts in System gateways →
These links connect subjects and terminology. They do not establish a shared historical origin.
Sources & provenance
Use the citations beside each section to distinguish a calculation convention, a historical teaching and an editorial example.