# Pherkad

> star in the constellation Ursa Minor

**Wikidata**: [Q14061](https://www.wikidata.org/wiki/Q14061)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Pherkad)  
**Source**: https://4ort.xyz/entity/pherkad


## References

1. SIMBAD
2. The Relation between Rotational Velocities and Spectral Peculiarities among A-Type Stars
3. Freebase Data Dumps. 2013
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. All Skies Encyclopaedia
8. Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system
9. Rotational velocities of A-type stars in the northern hemisphere. II. Measurement of v sin i
10. Validation of the new Hipparcos reduction
11. Fundamental parameters of B supergiants from the BCD system. I. Calibration of the (λ_1, D) parameters into Teff