# rayleigh

> unit of photon flux

**Wikidata**: [Q12912288](https://www.wikidata.org/wiki/Q12912288)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Rayleigh_(unit))  
**Source**: https://4ort.xyz/entity/rayleigh-q12912288


## References

1. Freebase Data Dumps. 2013