# AY Centauri

> classical Cepheid variable star in the constellation Centaurus

**Wikidata**: [Q85454843](https://www.wikidata.org/wiki/Q85454843)  
**Source**: https://4ort.xyz/entity/ay-centauri


## References

1. SIMBAD
2. Washington Double Star Catalog
3. The Henry Draper catalogue : 9h, 10h, and 11h
4. VizieR Online Data Catalog: Henry Draper Catalogue and Extension, published in Ann. Harvard Obs. 91-100 (1918-1925)
5. Gaia Data Release 2
6. Observational studies of cepheid amplitudes. I. Period-amplitude relationships for galactic cepheids and interrelation of amplitudes
7. Period-colour and amplitude-colour relations in classical Cepheid variables - IV. The multiphase relations
8. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
9. The Tycho-2 catalogue of the 2.5 million brightest stars
10. The distribution of the elements in the Galactic disk. II. Azimuthal and radial variation in abundances from Cepheids
11. Barium abundances in Cepheids
12. Oxygen abundances in Cepheids
13. The distribution of the elements in the galactic disk. III. A reconsideration of Cepheids from l = 30{deg} to 250{deg}