# Q77412361

> white dwarf in the constellation Ursa Major

**Wikidata**: [Q77412361](https://www.wikidata.org/wiki/Q77412361)  
**Source**: https://4ort.xyz/entity/q77412361


## 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 Fifth 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. Constraining the age-activity relation for cool stars: the Sloan Digital Sky Survey Data Release 5 low-mass star spectroscopic sample