Exoplanets: X, Y and Z These are the confirmed star systems with planets that have names starting with X, Y, and Z A-Z Nesen pievienotie Nesen atjauninātie YSES 1 YZ Ceti Xi Aquilae XO-1 XO-2 XO-3 XO-4 XO-5 XO-6 XO-7
