# Q77691637

> white dwarf in the constellation Ursa Major

**Wikidata**: [Q77691637](https://www.wikidata.org/wiki/Q77691637)  
**Source**: https://4ort.xyz/entity/q77691637


## References

1. SIMBAD
2. A Catalog of Spectroscopically Confirmed White Dwarfs from the Sloan Digital Sky Survey Data Release 4
3. SDSS DR7 white dwarf catalog
4. DA white dwarfs in Sloan Digital Sky Survey Data Release 7 and a search for infrared excess emission
5. A photometric selection of white dwarf candidates in Sloan Digital Sky Survey Data Release 10
6. The Sixth Data Release of the Sloan Digital Sky Survey
7. USNO-A2.0
8. The SDSS Photometric Catalog, Release 9
9. Gaia Data Release 2