# Q77921359

> quasar in the constellation Ursa Major

**Wikidata**: [Q77921359](https://www.wikidata.org/wiki/Q77921359)  
**Source**: https://4ort.xyz/entity/q77921359


## References

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