# Q74103921

> classical Cepheid variable star in the constellation Cygnus

**Wikidata**: [Q74103921](https://www.wikidata.org/wiki/Q74103921)  
**Source**: https://4ort.xyz/entity/q74103921


## References

1. SIMBAD
2. Color excesses for supergiants and classical Cepheids. I. Calibration of the G-band photometry
3. Observational studies of cepheid amplitudes. I. Period-amplitude relationships for galactic cepheids and interrelation of amplitudes
4. Period-colour and amplitude-colour relations in classical Cepheid variables - IV. The multiphase relations
5. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
6. Gaia Data Release 2
7. Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system
8. Barium abundances in Cepheids