# HD 21970

> star in the constellation Cassiopeia

**Wikidata**: [Q10849587](https://www.wikidata.org/wiki/Q10849587)  
**Source**: https://4ort.xyz/entity/q10849587


## References

1. SIMBAD
2. [VizieR](https://vizier.u-strasbg.fr/viz-bin/VizieR-5?-ref=VIZ627abe251684c&-out.add=.&-source=VI/42/out&-c=051.1001%20%2b75.3205,eq=B1875,rs=2)
3. VizieR Online Data Catalog: Henry Draper Catalogue and Extension, published in Ann. Harvard Obs. 91-100 (1918-1925)
4. The Tycho-2 catalogue of the 2.5 million brightest stars
5. Gaia Data Release 2
6. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)