# Q77921381

> quasar in the constellation Ursa Major

**Wikidata**: [Q77921381](https://www.wikidata.org/wiki/Q77921381)  
**Source**: https://4ort.xyz/entity/q77921381


## References

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