NB: this turned out to be not a SN, but a field star.
The possible supernova PSN J16495254+5532345 in NGC 6246 was imaged as part of the Virtual Telescope’s supernova follow-up program.
The image above comes from the average of five, 120-seconds exposures, unfiltered, remotely collected with the PlaneWave 17″+Paramount ME+SBIG STL-6303E robotic unit part of the Virtual Telescope Project. The possible supernova was estimated at mag. 16.8 (R mags for the reference stars from UCAC-4).
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