# Q78201447

> quasar in the constellation Boötes

**Wikidata**: [Q78201447](https://www.wikidata.org/wiki/Q78201447)  
**Source**: https://4ort.xyz/entity/q78201447


## 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. USNO-A2.0
5. A catalogue of quasars and active nuclei: 13th edition
6. The SDSS Photometric Catalog, Release 9
7. Gaia Data Release 2
8. DA white dwarfs in Sloan Digital Sky Survey Data Release 7 and a search for infrared excess emission