# HD 39421

> star

**Wikidata**: [Q3780997](https://www.wikidata.org/wiki/Q3780997)  
**Source**: https://4ort.xyz/entity/q3780997


## 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. Gaia Data Release 2
5. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
6. Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system
7. Accurate stellar rotational velocities using the Fourier transform of the cross correlation maximum
8. Rotational velocities of A-type stars. IV. Evolution of rotational velocities