# Q77417820

> white dwarf in the constellation Ursa Major

**Wikidata**: [Q77417820](https://www.wikidata.org/wiki/Q77417820)  
**Source**: https://4ort.xyz/entity/q77417820


## References

1. SIMBAD
2. Post-common envelope binaries from SDSS - VII. A catalogue of white dwarf-main sequence binaries
3. New white dwarf stars in the Sloan Digital Sky Survey Data Release 10
4. The SDSS Photometric Catalog, Release 7
5. The Fifth Data Release of the Sloan Digital Sky Survey
6. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
7. Gaia Data Release 2
8. The Sloan Digital Sky Survey Data Release 7 spectroscopic M dwarf catalog. I. Data