# 20 Canum Venaticorum

> variable star in the constellation Canes Venatici

**Wikidata**: [Q4347909](https://www.wikidata.org/wiki/Q4347909)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/20_Canum_Venaticorum)  
**Source**: https://4ort.xyz/entity/20-canum-venaticorum


## References

1. General Catalogue of Variable Stars
2. SIMBAD
3. The Physical Basis of Luminosity Classification in the Late A-, F-, and Early G-Type Stars. I. Precise Spectral Types for 372 Stars
4. Gaia Data Release 3
5. Freebase Data Dumps. 2013
6. The Tycho-2 catalogue of the 2.5 million brightest stars
7. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
8. Gaia Early Data Release 3
9. Carbon and oxygen abundances across the Hertzsprung gap
10. Rotational and radial velocities for a sample of 761 Hipparcos giants and the role of binarity
11. Validation of the new Hipparcos reduction