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NASA shares new image of Pa 30, a probable remnant of a supernova recorded in 1181
Techeblog says eight records place the star in Cassiopeia in August 1181; it stayed visible for 185 days.
TLDR
CantonRadio reports NASA shared a new image of Pa 30, the probable remnant of a supernova recorded in 1181 by Chinese, Japanese and Arab astronomers. Techeblog describes a Gemini North view of Pa 30 as a cosmic firework and says the star remained visible for 185 days.
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