# Sigma2 Ursae Majoris

> binary star in the constellation Ursa Major

**Wikidata**: [Q5178668](https://www.wikidata.org/wiki/Q5178668)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Sigma2_Ursae_Majoris)  
**Source**: https://4ort.xyz/entity/sigma2-ursae-majoris


## References

1. SIMBAD
2. Visual multiples. VII. MK classifications
3. Washington Double Star Catalog
4. Freebase Data Dumps. 2013
5. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
6. Validation of the new Hipparcos reduction
7. A spectroscopy study of nearby late-type stars, possible members of stellar kinematic groups
8. Lithium abundance patterns of late-F stars: an in-depth analysis of the lithium desert
9. Chromospheric activity and rotation of FGK stars in the solar vicinity