# Q87912630

> RR Lyrae variable star in the constellation Cygnus

**Wikidata**: [Q87912630](https://www.wikidata.org/wiki/Q87912630)  
**Source**: https://4ort.xyz/entity/q87912630


## 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. General Catalogue of Variable Stars, 3rd ed.
4. RR Lyrae stars in the GCVS observed by the Qatar Exoplanet Survey
5. Mid-infrared period-luminosity relations of RR Lyrae stars derived from the AllWISE Data Release
6. Gaia Data Release 2
7. The Tycho-2 catalogue of the 2.5 million brightest stars
8. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
9. Gaia Early Data Release 3
10. Astrophysical supplements to the ASCC-2.5: Ia. Radial velocities of ∼55000 stars and mean radial velocities of 516 Galactic open clusters and associations
11. Vitesses radiales. Catalogue WEB: Wilson Evans Batten. Radial velocities: The Wilson-Evans-Batten catalogue
12. Radial velocities of 67 variable stars of the RR Lyrae type
13. On the Use of Field RR Lyrae as Galactic Probes. III. The α-element Abundances