# Pi Hydrae

> star in the constellation Hydra

**Wikidata**: [Q978492](https://www.wikidata.org/wiki/Q978492)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Pi_Hydrae)  
**Source**: https://4ort.xyz/entity/pi-hydrae


## References

1. SIMBAD
2. Source
3. Freebase Data Dumps. 2013
4. Catalogue of Stellar Photometry in Johnson's 11-color system
5. Gaia Data Release 3
6. Gaia Early Data Release 3
7. Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system
8. High-resolution spectroscopic survey of 671 GK giants. I - Stellar atmosphere parameters and abundances
9. Precise radial velocities of giant stars. III. Spectroscopic stellar parameters
10. Validation of the new Hipparcos reduction
11. Lithium in red giant stars: Constraining non-standard mixing with large surveys in the Gaia era