# OY Hydrae

> star

**Wikidata**: [Q10850621](https://www.wikidata.org/wiki/Q10850621)  
**Source**: https://4ort.xyz/entity/oy-hydrae


## References

1. SIMBAD
2. VizieR
3. Source
4. Gaia Data Release 3
5. Catalogue of Stellar Photometry in Johnson's 11-color system
6. Gaia Data Release 2
7. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
8. Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system
9. Rotational Velocities of B Stars
10. High and intermediate-resolution spectroscopy of Be stars. An atlas of Hγ, He I 4471 and Mg II 4481 lines