# Q66493240
**Wikidata**: [Q66493240](https://www.wikidata.org/wiki/Q66493240)  
**Source**: https://4ort.xyz/entity/q66493240


## References

1. SIMBAD
2. MK classification of 142 visual binaries
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