# RR Hydrae

> Mira variable star in the constellation Hydra

**Wikidata**: [Q88617969](https://www.wikidata.org/wiki/Q88617969)  
**Source**: https://4ort.xyz/entity/rr-hydrae


## References

1. SIMBAD
2. Source
3. Determination of pulsation periods and other parameters of 2875 stars classified as Mira in the All Sky Automated Survey (ASAS)
4. Long-period High-amplitude Red Variables in the KELT Survey
5. Catalogue of Stellar Photometry in Johnson's 11-color system
6. Gaia Early Data Release 3
7. Gaia Data Release 3
8. General Catalogue of Stellar Radial Velocities
9. Vitesses radiales. Catalogue WEB: Wilson Evans Batten. Radial velocities: The Wilson-Evans-Batten catalogue
10. Gaia Data Release 2