# ER Ursae Majoris

> star in the constellation Ursa Major

**Wikidata**: [Q66200955](https://www.wikidata.org/wiki/Q66200955)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/ER_Ursae_Majoris)  
**Source**: https://4ort.xyz/entity/er-ursae-majoris


## References

1. SIMBAD
2. VizieR
3. Fourth USNO CCD Astrograph Catalog
4. Gaia Data Release 2
5. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
6. U BV RI photometric standard stars around the sky at +50 deg declination
7. The ninth data release of the Sloan Digital Sky Survey: first spectroscopic data from the SDSS-III baryon oscillation spectroscopic survey