# Q66620646
**Wikidata**: [Q66620646](https://www.wikidata.org/wiki/Q66620646)  
**Source**: https://4ort.xyz/entity/q66620646


## References

1. SIMBAD
2. Source
3. Line strengths for southerns OB stars. II. Observations with moderate dispersion
4. Some characteristics of the B and A stars in the Upper Scorpius complex
5. A study of the II Scorpii association
6. Seven-colour photometry of O, B and A stars
7. A new photoelectric method of classification of luminosity and spectral type for O and B-type stars
8. The Tycho-2 catalogue of the 2.5 million brightest stars
9. Gaia Data Release 2
10. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
11. Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system
12. A catalogue of stellar rotational velocities
13. Catalogue of rotational velocities of the stars