# Q89782888

> white dwarf in the constellation Ursa Major

**Wikidata**: [Q89782888](https://www.wikidata.org/wiki/Q89782888)  
**Source**: https://4ort.xyz/entity/q89782888


## References

1. SIMBAD
2. Cool White Dwarfs in the Sloan Digital Sky Survey
3. A detailed model atmosphere analysis of cool white dwarfs in the Sloan Digital Sky Survey
4. The USNO-B Catalog
5. The Sixth Data Release of the Sloan Digital Sky Survey
6. The SDSS Photometric Catalog, Release 9
7. Gaia Data Release 2
8. Ultracool white dwarfs and the age of the Galactic disc