# Q66630481

> Alpha² Canum Venaticorum variable in the constellation Cygnus

**Wikidata**: [Q66630481](https://www.wikidata.org/wiki/Q66630481)  
**Source**: https://4ort.xyz/entity/q66630481


## References

1. SIMBAD
2. VizieR Online Data Catalog: Henry Draper Catalogue and Extension, published in Ann. Harvard Obs. 91-100 (1918-1925)
3. Washington Double Star Catalog
4. Catalog of Galactic OB Stars
5. Gaia Data Release 2
6. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
7. Astrophysical supplements to the ASCC-2.5: Ia. Radial velocities of ∼55000 stars and mean radial velocities of 516 Galactic open clusters and associations