# FY Hydrae

> variable star

**Wikidata**: [Q124275589](https://www.wikidata.org/wiki/Q124275589)  
**Source**: https://4ort.xyz/entity/fy-hydrae


## References

1. SIMBAD
2. Observations of southern RR Lyrae stars
3. Gaia Data Release 3
4. The first INTEGRAL-OMC catalogue of optically variable sources
5. Discovery of ~9,000 new RR Lyrae in the southern Catalina surveys
6. Characteristics of bright AB-type RR Lyrae stars from the ASAS and WASP surveys
7. Gaia Early Data Release 3
8. The All Sky Automated Survey. Catalog of about 3800 variable stars
9. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
10. Kinematics of metal-poor stars in the Galaxy. II. Proper motions for a large nonkinematically selected sample