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BAA Ordinary Meeting, 2021 January 23 : ZOOM
This meeting was held as a webinar using Zoom and YouTube, due to the continued restrictions caused by COVID-19. Alan
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Convertible telescopes
From time to time, one comes across the idea of a telescope that has more than one optical configuration. This
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Betelgeuse’s 2021 April minimum agrees with prediction of 430-day period
Interest in Betelgeuse remains high. No fewer than 6,089 visual estimates of the star have been submitted to the American
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