# Q81916504

> white dwarf in the constellation Ursa Major

**Wikidata**: [Q81916504](https://www.wikidata.org/wiki/Q81916504)  
**Source**: https://4ort.xyz/entity/q81916504


## References

1. SIMBAD
2. A spectroscopic survey and analysis of bright, hydrogen-rich white dwarfs
3. Washington Double Star Catalog
4. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
5. The USNO-B Catalog
6. Gaia Data Release 2
7. The Rotation of M Dwarfs Observed by the Apache Point Galactic Evolution Experiment