PSN J12185771+471811 Probable supernova discovered in NGC 4258 (Messier 106) by Pan-STARRS1 http://www.astronomerstelegram.org/?read=6156 CBAT "Transient Object Followup Reports" http://www.cbat.eps.harvard.edu/unconf/followups/J12185771+471811%20.html Clear skies, Patrick