# Q80605642

> quasar in the constellation Ursa Major

**Wikidata**: [Q80605642](https://www.wikidata.org/wiki/Q80605642)  
**Source**: https://4ort.xyz/entity/q80605642


## References

1. SIMBAD
2. A strong redshift dependence of the broad absorption line quasar fraction
3. Constraint on the time variation of the fine-structure constant with the SDSS-III/BOSS DR12 quasar sample
4. The SDSS Photometric Catalog, Release 9
5. Roma-BZCAT: a multifrequency catalogue of blazars
6. A catalogue of quasars and active nuclei: 13th edition
7. The SDSS Photometric Catalog, Release 7
8. Gaia Data Release 2
9. DA white dwarfs in Sloan Digital Sky Survey Data Release 7 and a search for infrared excess emission