# Q66491639
**Wikidata**: [Q66491639](https://www.wikidata.org/wiki/Q66491639)  
**Source**: https://4ort.xyz/entity/q66491639


## References

1. SIMBAD
2. MK classification for visual binary components
3. Washington Double Star Catalog
4. The Tycho-2 catalogue of the 2.5 million brightest stars
5. Gaia Data Release 2