Jisho

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超新星年表
Wikipedia definition
1. Timeline of white dwarfs, neutron stars, and supernovaeTimeline of white dwarfs, neutron stars, and supernovae Note that this list is mainly about the development of knowledge, but also about some supernovae taking place. For a separate list of the latter, see the article List of supernovae. All dates refer to when the supernova was observed on Earth or would have been observed on Earth had powerful enough telescopes existed at the time.
Read “Timeline of white dwarfs, neutron stars, and supernovae” on English Wikipedia
Read “超新星に関する年表” on Japanese Wikipedia
Read “Timeline of white dwarfs, neutron stars, and supernovae” on DBpedia

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