# Q66630399

> classical Cepheid variable star in the constellation Aquila

**Wikidata**: [Q66630399](https://www.wikidata.org/wiki/Q66630399)  
**Source**: https://4ort.xyz/entity/q66630399


## References

1. SIMBAD
2. Michigan catalogue of two-dimensional spectral types for the HD Stars, Vol. 5
3. Observational studies of cepheid amplitudes. I. Period-amplitude relationships for galactic cepheids and interrelation of amplitudes
4. The Tycho-2 catalogue of the 2.5 million brightest stars
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. SP_Ace: a new code to derive stellar parameters and elemental abundances