# Q87903113

> spectroscopic binary in the constellation Cygnus

**Wikidata**: [Q87903113](https://www.wikidata.org/wiki/Q87903113)  
**Source**: https://4ort.xyz/entity/q87903113


## References

1. SIMBAD
2. VizieR Online Data Catalog: Henry Draper Catalogue and Extension, published in Ann. Harvard Obs. 91-100 (1918-1925)
3. The Tycho-2 catalogue of the 2.5 million brightest stars
4. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
5. Gaia Data Release 2
6. SB9: The ninth catalogue of spectroscopic binary orbits
7. New constraints on the chemical evolution of the solar neighbourhood and Galactic disc(s)