# Q89438227

> white dwarf in the constellation Ursa Major

**Wikidata**: [Q89438227](https://www.wikidata.org/wiki/Q89438227)  
**Source**: https://4ort.xyz/entity/q89438227


## References

1. SIMBAD
2. A search for the hidden population of AM CVn binaries in the Sloan Digital Sky Survey
3. Gaia Data Release 2
4. The Second Byurakan Survey. General Catalogue
5. The SDSS Photometric Catalog, Release 7
6. DB white dwarfs in the Sloan Digital Sky Survey data release 10 and 12