# HD 21551

> star in the constellation Perseus

**Wikidata**: [Q6868362](https://www.wikidata.org/wiki/Q6868362)  
**Source**: https://4ort.xyz/entity/q6868362


## References

1. [VizieR](https://vizier.u-strasbg.fr/viz-bin/VizieR-5?-ref=VIZ62716da6840d6&-out.add=.&-source=VI/42/out&-c=050.4501%20%2b47.6708,eq=B1875,rs=2)
2. The radial velocities spectral types and projected rotational velocities of 633 bright northern A stars
3. The H-R diagram of the alpha Persei cluster
4. SIMBAD
5. Catalogue of Stellar Photometry in Johnson's 11-color system
6. Gaia Data Release 2
7. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
8. Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system
9. The radial velocities and luminosities of 77 stars in the field of the alpha Persei cluster
10. Rotational Velocities of B Stars
11. Rotational velocities of A-type stars. IV. Evolution of rotational velocities