# RY Ursae Majoris

> long-period variable star in the constellation Ursa Major

**Wikidata**: [Q66497373](https://www.wikidata.org/wiki/Q66497373)  
**Source**: https://4ort.xyz/entity/ry-ursae-majoris


## References

1. SIMBAD
2. VizieR
3. Catalogue and bibliography of emission-line stars of types later than B
4. VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+, 2007-2017)
5. Catalogue of Stellar Photometry in Johnson's 11-color system
6. Gaia Data Release 2
7. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)