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Ha solar vignetting
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Image processing bottle neck
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Books on optics
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Springer 50% off
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Betelgeuse
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Alan Heath
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Old BAA Journals
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Ratchet mechanism for opening slit in dome
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Comet imaging help – C/2023 A3
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Piggy backing on C14
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Books for sale
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Planisphere background
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Daft solar hydrogen alpha questions
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Old Patrick Moore books
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After monocentric 1″ RAS thread eyepiece
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BAA Journal – have your say
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Bob Mizon
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Mercury’s socium tail
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Winchester Weekend film from 1972
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Comet stacking in DSS
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Ha solar vignetting
