RX J1450.5+6403 outburst information Reported observations since 1999. The object has started receiving attention only recently. The available observations could not exclude any presence of previous outbursts in the recent past. Anyway, the present outburst detection is the first-ever since the discovery of the object. Congratulations, Tonny! YYYYMMDD(UT) mag observer 19990908.880 <153 (T. Kinnunen) 19990910.840 <151 (T. Kinnunen) 19990911.790 <151 (T. Kinnunen) 19990912.790 <151 (T. Kinnunen) 19990913.769 <151 (T. Kinnunen) 19990914.769 <151 (T. Kinnunen) 19990915.769 <151 (T. Kinnunen) 19990918.780 <151 (T. Kinnunen) 19990919.780 <151 (T. Kinnunen) 19990921.780 <142 (T. Kinnunen) 19990926.760 <142 (T. Kinnunen) 20000316.699 <134 (H. Maehara) 20000320.760 <129 (H. Maehara) 20000326.637 <134 (H. Maehara) 20000401.735 <142 (H. Maehara) 20000423.578 <134 (H. Maehara) 20000429.672 <134 (H. Maehara) 20000504.619 <134 (H. Maehara) 20000510.906 <165C (T. Vanmunster) 20000514.864 144C (T. Vanmunster) outburst