1998A&A...335..121R

We present the discovery of RX J1230.8+0115 a QSO which is among the brightest known at optical wavelengths. The QSO was discovered because of both its ultra-violet excess and its X-ray emission as part of an identification programme of ROSAT X-ray sources. The QSO is only 54' and 200 Mpc from 3C 273. The two QSOs have a projected separation of 10 Mpc (at z=0.117) making this object particularly interesting for studies of intervening absorption, and highlights the existence of incompleteness in existing surveys for bright QSOs.