Ken M. Harrison
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Astronomical Spectroscopy for Amateurs (The Patrick Moore Practical Astronomy Series)
Harrison, Ken M.
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Grating Spectroscopes and How to Use Them
Ken M. Harrison
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Imaging Sunlight Using a Digital Spectroheliograph (The Patrick Moore Practical Astronomy Series)
Harrison, Ken M.
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View 12 offersUS$ 56.00
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