# Q66531574

> long-period variable star in the constellation Cygnus

**Wikidata**: [Q66531574](https://www.wikidata.org/wiki/Q66531574)  
**Source**: https://4ort.xyz/entity/q66531574


## References

1. SIMBAD
2. Radial velocities, spectral types and luminosity classes of 820 stars
3. VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+, 2007-2017)
4. The Tycho-2 catalogue of the 2.5 million brightest stars
5. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
6. Gaia Early Data Release 3
7. Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system
8. Gaia Data Release 2
9. Radii and Effective Temperatures for K and M Giants and Supergiants. II