# Q66643237
**Wikidata**: [Q66643237](https://www.wikidata.org/wiki/Q66643237)  
**Source**: https://4ort.xyz/entity/q66643237


## References

1. SIMBAD
2. VizieR Online Data Catalog: Henry Draper Catalogue and Extension, published in Ann. Harvard Obs. 91-100 (1918-1925)
3. The Tycho-2 catalogue of the 2.5 million brightest stars
4. Gaia Data Release 2
5. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
6. The SDSS Photometric Catalog, Release 7
7. New constraints on the chemical evolution of the solar neighbourhood and Galactic disc(s)