Early Chinese sunspot observations recorded
Approximate date · Calendar as reported in the source (not converted) · Date as reported
NASA’s solar history associates sunspot observations in the Book of Changes with approximately 800 BCE.
- Type
- ancient context
- Category
- ancient astronomy
- Organization
- Ancient China
- Participants
- Ancient China
Context and qualifications
Traditional attribution; no exact observing date is established here.
Sources and attribution
- NASA — Solar science timeline (opens in a new tab) — Factual summary; source attribution retained.