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The top documents tagged [portable telescopes]
Sky & Telescope 2010-05
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ASTRONOMY CLUB. Amateur Astronomy Amateur astronomy, also called backyard astronomy, is a hobby whose participants enjoy watching the night sky (and the
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The Io Plasma Torus Volcanoes, Atmospheres, and Magnetospheres, Oh My! Dr. Jeff Morgenthaler
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(Thanks for Dr. Boting Yang)
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1 The History of the Sunspot Number Leif Svalgaard Stanford University, California, USA AOGS, Singapore, August 2015 WSO
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