# 20 Hydrae

> star in the constellation Hydra

**Wikidata**: [Q11088460](https://www.wikidata.org/wiki/Q11088460)  
**Source**: https://4ort.xyz/entity/20-hydrae


## References

1. SIMBAD
2. Michigan catalogue of two-dimensional spectral types for the HD Stars, Vol. 5
3. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
4. Gaia Early Data Release 3
5. Gaia Data Release 2
6. The atmospheric parameters and spectral interpolator for the MILES stars