A BRIGHT SUPERNOVA IN THE NEARBY GALAXY NGC 2403 (STScI-PRC04-23)

Check this out:

" And yet, this supernova, called SN 2004dj,
resides far beyond our galaxy. Its home is in the outskirts of NGC 2403,
a galaxy located 11 million light-years from Earth. Although the
supernova is far from Earth, it is the closest stellar explosion
discovered in more than a decade. This image was taken on Aug. 17, two
weeks after an amateur astronomer discovered the supernova.
"

So, who discovered this supernova???

jon