# IR Ursae Majoris

> long-period variable star in the constellation Ursa Major

**Wikidata**: [Q66630852](https://www.wikidata.org/wiki/Q66630852)  
**Source**: https://4ort.xyz/entity/ir-ursae-majoris


## References

1. SIMBAD
2. VizieR
3. VizieR Online Data Catalog: Henry Draper Catalogue and Extension, published in Ann. Harvard Obs. 91-100 (1918-1925)
4. UBV photometry of stars whose positions are accurately known. VI
5. Gaia Data Release 2
6. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)