Search for an apparent supernova in an amateur image of NGC 6946, adding the astrometrical calibration to the image and comparing it with an archive one. The amateur image of ngc6946 (ngc6946.fits) is stored in the folder res. Contact: G. Iafrate, iafrate at oats.inaf.it en (master): 2014-01-27 de: 2010-02-24 it: 2014-01-27 es: 2010-03-26 fr 2010-09-16