# DU Ursae Majoris

> quasar in the constellation Ursa Major

**Wikidata**: [Q77911950](https://www.wikidata.org/wiki/Q77911950)  
**Source**: https://4ort.xyz/entity/du-ursae-majoris


## References

1. SIMBAD
2. The Sloan Digital Sky Survey Quasar Catalog: Fourteenth data release
3. The Third Data Release of the Sloan Digital Sky Survey
4. The SDSS Photometric Catalog, Release 9
5. A catalogue of quasars and active nuclei: 13th edition
6. The SDSS Photometric Catalog, Release 7
7. Gaia Early Data Release 3
8. Gaia Data Release 2