# Epsilon Hydrae

> variable star in the constellation Hydra

**Wikidata**: [Q1028788](https://www.wikidata.org/wiki/Q1028788)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Epsilon_Hydrae)  
**Source**: https://4ort.xyz/entity/epsilon-hydrae


## References

1. SIMBAD
2. Ultraviolet and Optical Studies of Binaries with Luminous Cool Primaries and Hot Companions. V. The Entire IUE Sample
3. Washington Double Star Catalog
4. Freebase Data Dumps. 2013
5. Source
6. Catalogue of Stellar Photometry in Johnson's 11-color system
7. Gaia Data Release 2
8. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
9. Validation of the new Hipparcos reduction
10. The Penn State - Torun Centre for Astronomy Planet Search stars. IV. Dwarfs and the complete sample
11. The Penn State - Torun Centre for Astronomy Planet Search stars. III. The sample of evolved stars
12. Rotational and radial velocities for a sample of 761 Hipparcos giants and the role of binarity