# Q66610400
**Wikidata**: [Q66610400](https://www.wikidata.org/wiki/Q66610400)  
**Source**: https://4ort.xyz/entity/q66610400


## References

1. SIMBAD
2. VizieR Online Data Catalog: Henry Draper Catalogue and Extension, published in Ann. Harvard Obs. 91-100 (1918-1925)
3. Gaia Data Release 2. Observational Hertzsprung-Russell diagrams
4. Gaia Data Release 1. Open cluster astrometry: performance, limitations, and future prospects
5. The Tycho-2 catalogue of the 2.5 million brightest stars
6. Gaia Data Release 2
7. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
8. Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system