# Twin Quasar

> gravitationally lensed quasar

**Wikidata**: [Q1330935](https://www.wikidata.org/wiki/Q1330935)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Twin_Quasar)  
**Source**: https://4ort.xyz/entity/twin-quasar


## References

1. SIMBAD
2. VizieR
3. 0957+561 A, B: twin quasistellar objects or gravitational lens?
4. Freebase Data Dumps. 2013
5. The Sloan Digital Sky Survey Quasar Catalog: Twelfth data release
6. A catalogue of quasars and active nuclei: 13th edition
7. Gaia Data Release 2