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Birmingham Astronomical Society (UK): m13 10inch 1 stacked
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Birmingham Astronomical Society (UK): xm13 10inch 6 stacked
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Birmingham Astronomical Society (UK): ring 3 stacked 2
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Birmingham Astronomical Society (UK): ring 3 stacked
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Birmingham Astronomical Society (UK): m13 pix fix noise updated 3
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Birmingham Astronomical Society (UK): m13 pix fix noise updated 4
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Birmingham Astronomical Society (UK): m13 pix fix noise updated
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Birmingham Astronomical Society (UK): m13 pix fix noisy
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Birmingham Astronomical Society (UK): xring 1 image with noise aply
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Birmingham Astronomical Society (UK): ring 1 image with noisy
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Birmingham Astronomical Society (UK): m13 pix fix noise updated 2
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Birmingham Astronomical Society (UK): staturn