# Q81919987

> white dwarf in the constellation Ursa Major

**Wikidata**: [Q81919987](https://www.wikidata.org/wiki/Q81919987)  
**Source**: https://4ort.xyz/entity/q81919987


## References

1. SIMBAD
2. Spectroscopy of stellar-like objects contained in the second Byurakan survey. I
3. Spectroscopy and Photometry of Stellar Objects from the Second Byurakan Survey
4. An independent test of the photometric selection of white dwarf candidates using LAMOST DR3
5. White dwarfs identified in LAMOST DR 2
6. The SDSS Photometric Catalog, Release 9
7. Gaia Data Release 2
8. DA white dwarfs in Sloan Digital Sky Survey Data Release 7 and a search for infrared excess emission