# Q87219876

> RR Lyrae variable star in the constellation Tucana

**Wikidata**: [Q87219876](https://www.wikidata.org/wiki/Q87219876)  
**Source**: https://4ort.xyz/entity/q87219876


## References

1. SIMBAD
2. Observations of southern RR Lyrae stars
3. Gaia Data Release 2
4. Discovery of ~9,000 new RR Lyrae in the southern Catalina surveys
5. General Catalogue of Variable Stars, 3rd ed.
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. On the Use of Field RR Lyrae as Galactic Probes. III. The α-element Abundances
10. On the Use of Field RR Lyrae as Galactic Probes. II. A New ΔS Calibration to Estimate Their Metallicity