# NT Hydrae

> Delta Scuti variable star in the constellation Hydra

**Wikidata**: [Q66613650](https://www.wikidata.org/wiki/Q66613650)  
**Source**: https://4ort.xyz/entity/nt-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. Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system
8. Gaia Data Release 2
9. New constraints on the chemical evolution of the solar neighbourhood and Galactic disc(s)