# Q66493309
**Wikidata**: [Q66493309](https://www.wikidata.org/wiki/Q66493309)  
**Source**: https://4ort.xyz/entity/q66493309


## References

1. SIMBAD
2. MK classifications of spectroscopic binaries
3. Spectral Classification of Stars Listed in Miss Payne's Catalogue of C Stars
4. The Tycho-2 catalogue of the 2.5 million brightest stars
5. Gaia Data Release 2
6. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
7. SB9: The ninth catalogue of spectroscopic binary orbits
8. New constraints on the chemical evolution of the solar neighbourhood and Galactic disc(s)