# Q66530911
**Wikidata**: [Q66530911](https://www.wikidata.org/wiki/Q66530911)  
**Source**: https://4ort.xyz/entity/q66530911


## References

1. SIMBAD
2. Source
3. Observational studies of cepheid amplitudes. I. Period-amplitude relationships for galactic cepheids and interrelation of amplitudes
4. Catalogue of Stellar Photometry in Johnson's 11-color system
5. Period-colour and amplitude-colour relations in classical Cepheid variables - IV. The multiphase relations
6. Gaia Data Release 2
7. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
8. Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system
9. Barium abundances in Cepheids