# quasar

> extremely luminous active galactic nuclei containing a massive black hole

**Wikidata**: [Q83373](https://www.wikidata.org/wiki/Q83373)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Quasar)  
**Source**: https://4ort.xyz/entity/quasar


## References

1. Freebase Data Dumps. 2013
2. Integrated Authority File
3. BBC Things
4. YSO-Wikidata mapping project
5. Quora
6. [Source](https://encyklopedia.pwn.pl/haslo/kwazary;3929642.html)
7. [Source](https://golden.com/wiki/Quasar-ZX5RE)
8. National Library of Israel
9. KBpedia
10. GF WordNet
11. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)