# HD 6668

> star in the constellation Cetus

**Wikidata**: [Q3781549](https://www.wikidata.org/wiki/Q3781549)  
**Source**: https://4ort.xyz/entity/q3781549


## References

1. SIMBAD
2. [VizieR](http://vizier.cfa.harvard.edu/viz-bin/VizieR-5?-ref=VIZ5dd9c4c3cf5c&-out.add=.&-source=VI/42/out&-c=015.2900%20-24.6654,eq=B1875,rs=2)
3. Source
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. Astrophysical supplements to the ASCC-2.5: Ia. Radial velocities of ∼55000 stars and mean radial velocities of 516 Galactic open clusters and associations
8. Rotational velocities of A-type stars in the northern hemisphere. II. Measurement of v sin i
9. An empirical temperature calibration for the Δ a photometric system. II. The A-type and mid F-type stars