Supernova SN2023ixf in the fire wheel galaxy M101.
Astronomers at the University of Potsdam have succeeded in making one of the world’s first brightness measurements of the supernova SN2023ixf in the constellation Ursa Major, which was discovered only on Friday evening. It is the brightest detected outburst in more than ten years in the galaxy Messier 101. Last weekend, the supernova was observed from the university observatory.
Stars do not shine forever, but have a limited lifetime. They gain their energy through nuclear fusion of lighter elements such as hydrogen and helium. Once the nuclear fuel supply is exhausted, the fusion products are further used to gradually produce heavier elements. In massive stars, this process can continue all the way to the element iron. ...
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