# Y Ursae Majoris

> variable star in the constellation Ursa Major

**Wikidata**: [Q31898993](https://www.wikidata.org/wiki/Q31898993)  
**Source**: https://4ort.xyz/entity/y-ursae-majoris


## References

1. General Catalogue of Variable Stars
2. SIMBAD
3. VizieR
4. Luminosities of the M-type variables of small range
5. VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+, 2007-2017)
6. The Tycho-2 catalogue of the 2.5 million brightest stars
7. Catalogue of Stellar Photometry in Johnson's 11-color system
8. Gaia Data Release 2
9. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)