# HD 210221

> star

**Wikidata**: [Q10849375](https://www.wikidata.org/wiki/Q10849375)  
**Source**: https://4ort.xyz/entity/q10849375


## References

1. SIMBAD
2. VizieR
3. The Relation between Rotational Velocities and Spectral Peculiarities among A-Type Stars
4. A study of the bright A stars. I. A catalogue of spectral classifications
5. Line broadening in high-luminosity stars. II. Less luminous supergiants
6. Photometric, polarization, and spectroscopic observations of O and B stars
7. Studies in galactic structure. II. Luminosity classification for 1270 blue giants stars
8. Polarization of stellar radiation. III. The polarization of 841 stars
9. Spectral Classification of Stars Listed in Miss Payne's Catalogue of C Stars
10. Revised Standards for Supergiants on the System of the Yerkes Spectral Atlas
11. VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+, 2007-2017)
12. Catalog of Galactic OB Stars
13. The Tycho-2 catalogue of the 2.5 million brightest stars
14. Gaia Data Release 2
15. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
16. Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system
17. Atmospheric Parameters and LTE Abundances for 22 Galactic, A-Type Supergiants
18. Rotational velocities of A-type stars in the northern hemisphere. II. Measurement of v sin i
19. Quantitative spectroscopy of galactic BA-type supergiants. I. Atmospheric parameters