# Q89847640

> white dwarf in the constellation Ursa Major

**Wikidata**: [Q89847640](https://www.wikidata.org/wiki/Q89847640)  
**Source**: https://4ort.xyz/entity/q89847640


## References

1. SIMBAD
2. The SDSS spectroscopic catalogue of white dwarf-main-sequence binaries: new identifications from DR 9-12
3. Gaia Data Release 2
4. The SDSS Photometric Catalog, Release 9
5. The SDSS Photometric Catalog, Release 7
6. New white dwarf and subdwarf stars in the Sloan Digital Sky Survey Data Release 12