# Q66609906
**Wikidata**: [Q66609906](https://www.wikidata.org/wiki/Q66609906)  
**Source**: https://4ort.xyz/entity/q66609906


## References

1. SIMBAD
2. Catalogue of two dimentional spectral types for the HD stars, Vol. 2
3. Washington Double Star Catalog
4. The Tycho double star catalogue
5. Fourth USNO CCD Astrograph Catalog
6. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
7. Validation of the new Hipparcos reduction
8. Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system
9. Rotational velocities of A-type stars. III. Velocity distributions
10. Rotational velocities of A-type stars in the northern hemisphere. II. Measurement of v sin i
11. Rotational velocities of A-type stars. IV. Evolution of rotational velocities