# Q74180570
**Wikidata**: [Q74180570](https://www.wikidata.org/wiki/Q74180570)  
**Source**: https://4ort.xyz/entity/q74180570


## References

1. SIMBAD
2. Interstellar extinction law in the vicinity of the North America and Pelican nebulae
3. Catalogue of Stellar Photometry in Johnson's 11-color system
4. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
5. Gaia Data Release 2
6. Astrophysical supplements to the ASCC-2.5: Ia. Radial velocities of ∼55000 stars and mean radial velocities of 516 Galactic open clusters and associations
7. Vitesses radiales. Catalogue WEB: Wilson Evans Batten. Radial velocities: The Wilson-Evans-Batten catalogue
8. The revision of the general catalogue of radial velocities
9. The projected rotational velocity distribution of a sample of OB stars from a calibration based on synthetic He I lines