At the time of this photo, supernova 2011fe was near its maximum luminosity.

Details
Date and Location- 2010-9-6 at the Victoria Centre Observatory.
Conditions- Clear, calm and 12ºC with good seeing.
Equipment- QSI583cs camera on 14" SCT and Paramount ME.
Exposure- 12x300sec lights with dark, flat and bias frames for calibration.
Processing in Deep Sky Stacker and Photoshop.