# Q93506068
**Wikidata**: [Q93506068](https://www.wikidata.org/wiki/Q93506068)  
**Source**: https://4ort.xyz/entity/q93506068


## References

1. SIMBAD
2. The Galactic O-Star Spectroscopic Survey. I. Classification system and bright northern stars in the blue-violet at R ~ 2500
3. The space distribution of the O stars in the solar neighborhood
4. Some spectroscopic characteristics of OB stars: an investigation of the space distribution of certain OB stars and the reference frame of the classification
5. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
6. Catalog of Galactic OB Stars
7. Gaia Data Release 2
8. The IACOB project. V. Spectroscopic parameters of the O-type stars in the modern grid of standards for spectral classification