# Q77917140

> white dwarf in the constellation Ursa Major

**Wikidata**: [Q77917140](https://www.wikidata.org/wiki/Q77917140)  
**Source**: https://4ort.xyz/entity/q77917140


## References

1. SIMBAD
2. Spectral classification of stars in the Second Byurakan Sky Survey. I
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 Catalog of Spectroscopically Confirmed White Dwarfs from the Sloan Digital Sky Survey Data Release 4
6. A photometric selection of white dwarf candidates in Sloan Digital Sky Survey Data Release 10
7. The Sixth Data Release of the Sloan Digital Sky Survey
8. The Second Byurakan Survey. General Catalogue
9. The SDSS Photometric Catalog, Release 9
10. Gaia Data Release 2