CLASS B1359+154 is a quasar, or quasi-stellar object, that has a redshift of 3.235. A group of three foreground galaxies at a redshift of about 1 are behaving as gravitational lenses. The result is a rare example of a sixfold multiply imaged quasar.
See also Twin Quasar Einstein Cross
References
External links Simbad data on QSO B1359+154 Image QSO B1359+154 Six-Image CLASS Gravitational Lens SIMBAD data