# tau Cyg B
**Wikidata**: [Q66491631](https://www.wikidata.org/wiki/Q66491631)  
**Source**: https://4ort.xyz/entity/tau-cyg-b


## References

1. SIMBAD
2. MK classification for visual binary components
3. Washington Double Star Catalog
4. The Tycho double star catalogue
5. Gaia Data Release 2