# Q89856252

> quasar in the constellation Hercules

**Wikidata**: [Q89856252](https://www.wikidata.org/wiki/Q89856252)  
**Source**: https://4ort.xyz/entity/q89856252


## References

1. SIMBAD
2. A catalog of quasar properties from the Baryon Oscillation Spectroscopic Survey
3. A catalogue of quasars and active nuclei: 13th edition
4. The SDSS Photometric Catalog, Release 7
5. The SDSS Photometric Catalog, Release 9
6. The Sloan Digital Sky Survey quasar catalog. V. Seventh data release
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