2013 05 31.5974
Discovery report from K. Itagaki, Yamagata, Japan.  Detected during the survey using 0.21-m refl.  + CCD.  The object was below 15.5 mag on his unfiltered survey image taken on 21.608 UT.  Image can be seen at: http://www.k-itagaki.jp/images/pnv-aql.jpg