# 21 Ceti

> star in the constellation Cetus

**Wikidata**: [Q3598103](https://www.wikidata.org/wiki/Q3598103)  
**Source**: https://4ort.xyz/entity/21-ceti


## References

1. SIMBAD
2. Michigan catalogue of two-dimensional spectral types for the HD Stars, Vol. 5
3. The Tycho-2 catalogue of the 2.5 million brightest stars
4. A new Large Magellanic Cloud K-band distance from precision measurements of nearby red clump stars
5. Gaia Early Data Release 3
6. Gaia Data Release 2
7. The lithium abundances of a large sample of red giants