Williamson–Dempsey

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Messier–Seilis

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Explore the Universe-Hay

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Explore the Moon—Telescope: Brodie

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Asteroid (51529) MarkSimpson

Mark Simpson (born 1969) is a Canadian scientist trained in electronic design and software engineering. His research focuses on asteroid occultations and tornadoes. His 2023 invention “ASTRID” has been adopted by many occultation observers. Mark used it to discover the binary nature of (5232), and the fact that TYC 5260–00005–1 is a close double star.

Reference: WGSBN Bulletin, Volume 4, Number 16, page 12

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JRASC 2024 December

Inside this issue:

  • The 1860 eclipse expedition
  • “Explosion Model” of the Big Bang
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Crawford-DS

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Crawford-WF

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Routledge-DS

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Gardner-DS

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