# solar cycle

> periodic change in the Sun's activity

**Wikidata**: [Q49385](https://www.wikidata.org/wiki/Q49385)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Solar_cycle)  
**Source**: https://4ort.xyz/entity/solar-cycle


## References

1. Nuovo soggettario
2. [Source](https://golden.com/wiki/Solar_cycle-ZZYWM)
3. National Library of Israel Names and Subjects Authority File
4. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)