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By NASA // November 18, 2018
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The star may have been as massive as 50 suns and have burned at a frantic pace
Located 65 million light-years away, a supergiant blue star once existed in a group of young stars of the spiral galaxy NGC 3938, as shown by this artist's concept. (Image of NASA)
(NASA) – Located 65 million light-years away, a supergiant blue star once existed in a group of young stars in the NGC 3938 spiral galaxy, as shown by this artist's concept.
It exploded as a supernova in 2017 and the Hubble Space Telescope archive photos were used to locate the condemned progenitor star, as it looked in 2007.
The star may have been as massive as 50 suns and burned at a frantic pace, making it warmer and bluer than our sun. It was so hot that he was losing his outer layers of hydrogen and helium.
When it exploded, astronomers categorized it as an Ic-type supernova because of the lack of hydrogen and helium in the supernova spectrum.
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