# Q89415581

> white dwarf in the constellation Ursa Major

**Wikidata**: [Q89415581](https://www.wikidata.org/wiki/Q89415581)  
**Source**: https://4ort.xyz/entity/q89415581


## References

1. SIMBAD
2. SDSS DR7 white dwarf catalog
3. Post-common envelope binaries from SDSS - VII. A catalogue of white dwarf-main sequence binaries
4. The Sixth Data Release of 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 7
7. Gaia Data Release 2
8. The WIRED survey. II. Infrared excesses in the SDSS DR7 white dwarf catalog