# Q66644125
**Wikidata**: [Q66644125](https://www.wikidata.org/wiki/Q66644125)  
**Source**: https://4ort.xyz/entity/q66644125


## References

1. SIMBAD
2. G.P. Kuiper's spectral classifications of proper-motion stars
3. Washington Double Star Catalog
4. The Tycho double star catalogue
5. Gaia Data Release 2