# Q66632553
**Wikidata**: [Q66632553](https://www.wikidata.org/wiki/Q66632553)  
**Source**: https://4ort.xyz/entity/q66632553


## References

1. Washington Double Star Catalog
2. SIMBAD
3. VizieR Online Data Catalog: Henry Draper Catalogue and Extension, published in Ann. Harvard Obs. 91-100 (1918-1925)
4. The Tycho-2 catalogue of the 2.5 million brightest stars
5. Q66682318
6. Gaia Data Release 2
7. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
8. Carbon and oxygen abundances across the Hertzsprung gap