WISE J224607.57−052635.0 (or W2246−0526 for short)[3] is an extremely luminous infrared galaxy (ELIRG) which, in 2015, was announced as the most luminous galaxy in the Universe.[3][4][5] The brightness is 350 trillion times[3] that of the Sun (349×1012L☉[1]), and the merger of smaller nearby galaxies may be contributing to its brightness.[3][4][5] The light is generated by a quasar 10 billion times the mass of the Sun.