# Sigma Cygni

> star in the constellation Cygnus

**Wikidata**: [Q5098581](https://www.wikidata.org/wiki/Q5098581)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Sigma_Cygni)  
**Source**: https://4ort.xyz/entity/sigma-cygni


## References

1. SIMBAD
2. Fundamental parameters of B supergiants from the BCD system. I. Calibration of the (λ_1, D) parameters into Teff
3. Catalogue of Stellar Photometry in Johnson's 11-color system
4. Gaia Data Release 2
5. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
6. Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system
7. Elemental abundances of the supergiant stars Cygnus and Leonis
8. The IACOB project. III. New observational clues to understand macroturbulent broadening in massive O- and B-type stars
9. Validation of the new Hipparcos reduction