# Q94388520

> spectroscopic binary in the constellation Cygnus

**Wikidata**: [Q94388520](https://www.wikidata.org/wiki/Q94388520)  
**Source**: https://4ort.xyz/entity/q94388520


## References

1. SIMBAD
2. The Galactic O-star Spectroscopic Survey (GOSSS). III. 142 additional O-type systems
3. A Radial Velocity Survey of the Cyg OB2 Association
4. The Tycho-2 catalogue of the 2.5 million brightest stars
5. Catalog of Galactic OB Stars
6. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
7. Gaia Data Release 2
8. Oxygen and silicon abundances in Cygnus OB2. Chemical homogeneity in a sample of OB slow rotators