# 39 Boötis A
**Wikidata**: [Q66491589](https://www.wikidata.org/wiki/Q66491589)  
**Source**: https://4ort.xyz/entity/39-bo-tis-a


## References

1. SIMBAD
2. VizieR
3. MK classifications of spectroscopic binaries
4. Washington Double Star Catalog
5. The Tycho-2 catalogue of the 2.5 million brightest stars
6. Gaia Data Release 2
7. Statistics of spectroscopic sub-systems in visual multiple stars