# CP Aquarii

> RR Lyrae variable star in the constellation Aquarius

**Wikidata**: [Q85039226](https://www.wikidata.org/wiki/Q85039226)  
**Source**: https://4ort.xyz/entity/cp-aquarii


## References

1. SIMBAD
2. Summary of delta-S metallicity measurements for bright RR Lyrae variables observed at Lick Observatory and KPNO between 1972 and 1987
3. Automated variable star classification using the Northern Sky Variability Survey
4. General Catalogue of Variable Stars, 3rd ed.
5. Characteristics of bright AB-type RR Lyrae stars from the ASAS and WASP surveys
6. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
7. The Tycho-2 catalogue of the 2.5 million brightest stars
8. Gaia Early Data Release 3
9. Gaia Data Release 3
10. On the Use of Field RR Lyrae as Galactic Probes. III. The α-element Abundances
11. Gaia Data Release 2
12. On the Use of Field RR Lyrae as Galactic Probes. II. A New ΔS Calibration to Estimate Their Metallicity