# HD 221568

> star

**Wikidata**: [Q12067708](https://www.wikidata.org/wiki/Q12067708)  
**Source**: https://4ort.xyz/entity/q12067708


## References

1. VizieR
2. Catalogue et bibliographie des etoiles a spectre particulier
3. Anomalous spectra of stars of class A
4. SIMBAD
5. Gaia Data Release 2
6. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
7. Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system
8. Spectroscopic study of the A-type peculiar star HD 221568
9. Interferometry of chemically peculiar stars: theoretical predictions versus modern observing facilities