# Q91873874

> star in the constellation Cygnus

**Wikidata**: [Q91873874](https://www.wikidata.org/wiki/Q91873874)  
**Source**: https://4ort.xyz/entity/q91873874


## References

1. SIMBAD
2. Membership of the WR binary system V444 Cygni in the young open cluster Berkeley 86
3. Catalog of Galactic OB Stars
4. The Tycho-2 catalogue of the 2.5 million brightest stars
5. Fourth USNO CCD Astrograph Catalog
6. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
7. Gaia Data Release 2
8. Stellar rotation in young clusters. I. Evolution of projected rotational velocity distributions