# Q66637619
**Wikidata**: [Q66637619](https://www.wikidata.org/wiki/Q66637619)  
**Source**: https://4ort.xyz/entity/q66637619


## References

1. SIMBAD
2. G.P. Kuiper's spectral classifications of proper-motion stars
3. VizieR Online Data Catalog: Henry Draper Catalogue and Extension, published in Ann. Harvard Obs. 91-100 (1918-1925)
4. The USNO-B Catalog
5. Gaia Data Release 2
6. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
7. Spectral properties of cool stars: extended abundance analysis of 1,617 planet-search stars
8. SP_Ace: a new code to derive stellar parameters and elemental abundances