# HD 20644

> star in the constellation Aries

**Wikidata**: [Q3780756](https://www.wikidata.org/wiki/Q3780756)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/HD_20644)  
**Source**: https://4ort.xyz/entity/hd-20644


## References

1. SIMBAD
2. VizieR
3. The Perkins catalog of revised MK types for the cooler stars
4. Catalogue of Stellar Photometry in Johnson's 11-color system
5. Gaia Data Release 2
6. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
7. Local kinematics of K and M giants from CORAVEL/Hipparcos/Tycho-2 data
8. Parameters and abundances in luminous stars
9. Catalogue of rotational velocities of the stars
10. A catalogue of stellar rotational velocities
11. Validation of the new Hipparcos reduction