# Q81941386

> white dwarf in the constellation Ursa Major

**Wikidata**: [Q81941386](https://www.wikidata.org/wiki/Q81941386)  
**Source**: https://4ort.xyz/entity/q81941386


## 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. Gaia Data Release 2
6. Constraining the age-activity relation for cool stars: the Sloan Digital Sky Survey Data Release 5 low-mass star spectroscopic sample