# Q75408221
**Wikidata**: [Q75408221](https://www.wikidata.org/wiki/Q75408221)  
**Source**: https://4ort.xyz/entity/q75408221


## References

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