# Q81810912

> white dwarf in the constellation Ursa Major

**Wikidata**: [Q81810912](https://www.wikidata.org/wiki/Q81810912)  
**Source**: https://4ort.xyz/entity/q81810912


## References

1. SIMBAD
2. New DQ white dwarfs in the Sloan Digital Sky Survey DR4: confirmation of two sequences
3. SDSS DR7 white dwarf catalog
4. Innocent bystanders: carbon stars from the Sloan Digital Sky Survey
5. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
6. The SDSS Photometric Catalog, Release 9
7. The USNO-B Catalog
8. Gaia Data Release 2
9. The Sixth Data Release of the Sloan Digital Sky Survey