# Q81916724

> quasar in the constellation Ursa Major

**Wikidata**: [Q81916724](https://www.wikidata.org/wiki/Q81916724)  
**Source**: https://4ort.xyz/entity/q81916724


## References

1. SIMBAD
2. The Sloan Digital Sky Survey Quasar Catalog: Twelfth data release
3. A catalogue of quasars and active nuclei: 13th edition
4. The SDSS Photometric Catalog, Release 9
5. The SDSS Photometric Catalog, Release 7
6. Gaia Data Release 2
7. DA white dwarfs in Sloan Digital Sky Survey Data Release 7 and a search for infrared excess emission