A radio-loud quasistellar object. Infrared observations reveal quasars to be associated with active host galaxies (McLeod and Rieke 1994, 1995), despite initial claims by J. Bahcall that Hubble images revealed many quasars to be "naked" (Kaiser 1995, Travis 1995). The most distant quasar known is PC 1247+3406, which has a relativistic redshift of 4.897 (Sky & Telescope 1991). The second most distant quasar known is BRI 1202-0725.