# Q66643297
**Wikidata**: [Q66643297](https://www.wikidata.org/wiki/Q66643297)  
**Source**: https://4ort.xyz/entity/q66643297


## 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
6. Statistics of spectroscopic sub-systems in visual multiple stars