# EM Ursae Majoris

> white dwarf in the constellation Ursa Major

**Wikidata**: [Q78311179](https://www.wikidata.org/wiki/Q78311179)  
**Source**: https://4ort.xyz/entity/em-ursae-majoris


## References

1. SIMBAD
2. VizieR
3. The Palomar-Green catalog of ultraviolet-excess stellar objects
4. DA white dwarfs in Sloan Digital Sky Survey Data Release 7 and a search for infrared excess emission
5. The USNO-B Catalog
6. Gaia Data Release 2
7. DB white dwarfs in the Sloan Digital Sky Survey data release 10 and 12