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         Amateur Astronomy:     more books (102)
  1. International Astronomical Union: IAU definition of planet, Doctor of Philosophy, Astronomy, Star, Planet, International Council for Science, Amateur astronomy, ... Planetary nomenclature, Solar System
  2. Astronomical Equipment for Amateurs (Patrick Moore's Practical Astronomy Series) by Martin Mobberley, 1999
  3. PRACTICAL AMATEUR ASTRONOMY by PATRICK MOORE, 1971

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