# Q89139175

> quasar in the constellation Draco

**Wikidata**: [Q89139175](https://www.wikidata.org/wiki/Q89139175)  
**Source**: https://4ort.xyz/entity/q89139175


## References

1. SIMBAD
2. A strong redshift dependence of the broad absorption line quasar fraction
3. The SDSS Photometric Catalog, Release 7
4. A catalogue of quasars and active nuclei: 13th edition
5. DA white dwarfs in Sloan Digital Sky Survey Data Release 7 and a search for infrared excess emission
6. The SDSS Photometric Catalog, Release 9
7. Gaia Data Release 2