PSN 2016gpg (A.R. 23 22 17.68 Dec. +50 09 20.9), discovered on September 25th, 2016 in the galaxy UGC 12558 (offset 7W - 14S), discovery magnitude 18.5, type: Unk (TNS) - SN discovered by F. Ciabattari-E. Mazzoni-M. Rossi with the telescope Newton 20" Monte Agliale Observatory (Lucca-Italy).
