# ZZ Andromedae

> RR Lyrae variable star in the constellation Andromeda

**Wikidata**: [Q85827535](https://www.wikidata.org/wiki/Q85827535)  
**Source**: https://4ort.xyz/entity/zz-andromedae


## References

1. SIMBAD
2. VizieR
3. Probing the outer galactic halo with RR Lyrae from the Catalina surveys
4. General Catalogue of Variable Stars, 3rd ed.
5. Analysis of RR Lyrae Stars in the Northern Sky Variability Survey
6. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
7. Gaia Data Release 2
8. Kinematics of metal-poor stars in the Galaxy. II. Proper motions for a large nonkinematically selected sample