# 54 Leonis A

> star

**Wikidata**: [Q4640490](https://www.wikidata.org/wiki/Q4640490)  
**Source**: https://4ort.xyz/entity/54-leonis-a


## References

1. SIMBAD
2. The radial velocities spectral types and projected rotational velocities of 633 bright northern A stars
3. Washington Double Star Catalog
4. Freebase Data Dumps. 2013
5. The Tycho-2 catalogue of the 2.5 million brightest stars
6. Fourth USNO CCD Astrograph Catalog
7. Gaia Data Release 2
8. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
9. The revision of the general catalogue of radial velocities
10. Vitesses radiales. Catalogue WEB: Wilson Evans Batten. Radial velocities: The Wilson-Evans-Batten catalogue
11. Rotational velocities of A-type stars in the northern hemisphere. II. Measurement of v sin i