# Q66609954
**Wikidata**: [Q66609954](https://www.wikidata.org/wiki/Q66609954)  
**Source**: https://4ort.xyz/entity/q66609954


## References

1. SIMBAD
2. VizieR Online Data Catalog: Henry Draper Catalogue and Extension, published in Ann. Harvard Obs. 91-100 (1918-1925)
3. Washington Double Star Catalog
4. The Tycho double star catalogue
5. Gaia Data Release 2
6. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
7. Validation of the new Hipparcos reduction
8. Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system
9. Vitesses radiales. Catalogue WEB: Wilson Evans Batten. Radial velocities: The Wilson-Evans-Batten catalogue
10. Carbon and oxygen abundances across the Hertzsprung gap