# Q81175240

> white dwarf in the constellation Ursa Major

**Wikidata**: [Q81175240](https://www.wikidata.org/wiki/Q81175240)  
**Source**: https://4ort.xyz/entity/q81175240


## References

1. SIMBAD
2. SDSS DR7 white dwarf catalog
3. A photometric selection of white dwarf candidates in Sloan Digital Sky Survey Data Release 10
4. Physical properties of the current census of northern white dwarfs within 40 pc of the Sun
5. The SDSS Photometric Catalog, Release 9
6. The WIRED survey. II. Infrared excesses in the SDSS DR7 white dwarf catalog
7. Gaia Data Release 2