# Q74870955
**Wikidata**: [Q74870955](https://www.wikidata.org/wiki/Q74870955)  
**Source**: https://4ort.xyz/entity/q74870955


## References

1. SIMBAD
2. VizieR Online Data Catalog: Henry Draper Catalogue and Extension, published in Ann. Harvard Obs. 91-100 (1918-1925)
3. The Henry Draper Extension Charts: A catalogue of accurate positions, proper motions, magnitudes and spectral types of 86933 stars
4. Catalog of Galactic OB Stars
5. Gaia Data Release 2
6. The projected rotational velocity distribution of a sample of OB stars from a calibration based on synthetic He I lines