# Q81818718

> white dwarf in the constellation Ursa Major

**Wikidata**: [Q81818718](https://www.wikidata.org/wiki/Q81818718)  
**Source**: https://4ort.xyz/entity/q81818718


## References

1. SIMBAD
2. Physical properties of the current census of northern white dwarfs within 40 pc of the Sun
3. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
4. Gaia Data Release 2
5. The USNO-B Catalog
6. A multi-survey approach to white dwarf discovery