# 23 Hydrae

> star in the constellation Hydra

**Wikidata**: [Q11088463](https://www.wikidata.org/wiki/Q11088463)  
**Source**: https://4ort.xyz/entity/23-hydrae


## References

1. SIMBAD
2. Michigan catalogue of two-dimensional spectral types for the HD Stars, Vol. 5
3. Gaia Data Release 3
4. The Tycho-2 catalogue of the 2.5 million brightest stars
5. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
6. Gaia Early Data Release 3
7. Gaia Data Release 2
8. Lithium in red giant stars: Constraining non-standard mixing with large surveys in the Gaia era
9. Rotational and radial velocities for a sample of 761 Hipparcos giants and the role of binarity
10. Homogeneous abundance analysis of FGK dwarf, subgiant, and giant stars with and without giant planets