# Q66632604
**Wikidata**: [Q66632604](https://www.wikidata.org/wiki/Q66632604)  
**Source**: https://4ort.xyz/entity/q66632604


## References

1. Washington Double Star Catalog
2. SIMBAD
3. Spectroscopic observations of O-type stars. V. The hydrogen lines and lambda 4686 He II
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. Spectroscopic studies of O-type stars. I. Classification and absolute magnitudes
6. The Galactic O-Star Spectroscopic Survey (GOSSS). II. Bright southern stars
7. Catalogue of Stellar Photometry in Johnson's 11-color system
8. The Tycho-2 catalogue of the 2.5 million brightest stars
9. Fourth USNO CCD Astrograph Catalog
10. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
11. Validation of the new Hipparcos reduction
12. Astrophysical supplements to the ASCC-2.5: Ia. Radial velocities of ∼55000 stars and mean radial velocities of 516 Galactic open clusters and associations
13. Stellar population models in the UV. I. Characterisation of the New Generation Stellar Library
14. The IACOB project. III. New observational clues to understand macroturbulent broadening in massive O- and B-type stars