# HD 9900

> star in the constellation Cassiopeia

**Wikidata**: [Q10850802](https://www.wikidata.org/wiki/Q10850802)  
**Source**: https://4ort.xyz/entity/q10850802


## References

1. SIMBAD
2. [VizieR](http://vizier.cfa.harvard.edu/viz-bin/VizieR-5?-ref=VIZ5e224973eaf7&-out.add=.&-source=VI/42/out&-c=022.4921%20%2b57.3394,eq=B1875,rs=2)
3. Spectral types in the Ursa Major stream
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)
7. Chemical Abundances for F and G Luminosity Class II Stars
8. Parameters and abundances in luminous stars