# Q78769403
**Wikidata**: [Q78769403](https://www.wikidata.org/wiki/Q78769403)  
**Source**: https://4ort.xyz/entity/q78769403


## References

1. SIMBAD
2. Michigan catalogue of two-dimensional spectral types for the HD Stars, Vol. 5
3. The Tycho-2 catalogue of the 2.5 million brightest stars
4. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
5. Gaia Data Release 2
6. Validation of the new Hipparcos reduction
7. Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system
8. New constraints on the chemical evolution of the solar neighbourhood and Galactic disc(s)