# 37 Hydrae

> star in the constellation Hydra

**Wikidata**: [Q11088464](https://www.wikidata.org/wiki/Q11088464)  
**Source**: https://4ort.xyz/entity/37-hydrae


## References

1. Washington Double Star Catalog
2. SIMBAD
3. Michigan catalogue of two-dimensional spectral types for the HD Stars, Vol. 5
4. The radial velocities of 335 late B-type stars
5. Gaia Data Release 3
6. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
7. Gaia Early Data Release 3
8. Astrophysical supplements to the ASCC-2.5: Ia. Radial velocities of ∼55000 stars and mean radial velocities of 516 Galactic open clusters and associations
9. Gaia Data Release 2
10. An empirical temperature calibration for the Δ a photometric system. II. The A-type and mid F-type stars