# II Ursae Majoris

> binary star in the constellation Ursa Major

**Wikidata**: [Q98332820](https://www.wikidata.org/wiki/Q98332820)  
**Source**: https://4ort.xyz/entity/ii-ursae-majoris


## References

1. VizieR
2. VizieR Online Data Catalog: Henry Draper Catalogue and Extension, published in Ann. Harvard Obs. 91-100 (1918-1925)
3. SIMBAD
4. Up-to-date linear elements of eclipsing binaries
5. Gaia Data Release 2
6. Fourth USNO CCD Astrograph Catalog
7. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
8. SB9: The ninth catalogue of spectroscopic binary orbits
9. New constraints on the chemical evolution of the solar neighbourhood and Galactic disc(s)