# Q84220405

> white dwarf in the constellation Ursa Major

**Wikidata**: [Q84220405](https://www.wikidata.org/wiki/Q84220405)  
**Source**: https://4ort.xyz/entity/q84220405


## References

1. SIMBAD
2. SDSS DR7 white dwarf catalog
3. DA white dwarfs in Sloan Digital Sky Survey Data Release 7 and a search for infrared excess emission
4. A photometric selection of white dwarf candidates in Sloan Digital Sky Survey Data Release 10
5. The Sixth Data Release of the Sloan Digital Sky Survey
6. The USNO-B Catalog
7. The SDSS Photometric Catalog, Release 9
8. Gaia Data Release 2