A new supernova in the Pinwheel Galaxy, aka M101, is the closest to Earth in a decade. Amateur astronomer Koichi Itagaki discovered it on May 19, 2023. The supernova should continue to brighten for a few days. It should remain visible to amateur astronomers with backyard telescopes for a few months. The supernova – named 2023ixf – lies in the direction of the constellation Ursa Major, near the end of the handle of the Big Dipper.
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