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1
by Grego, Peter
Published 2014
Springer International Publishing
“... with the apparition of another naked-eye comet, C/2011 L4 (PanSTARRS), and following C/2012 S1 (ISON...”
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2
by Grego, Peter
Published 2005
Springer London
Table of Contents: “... the Moon -- Observing and Recording the Moon -- Viewing the Moon with the Unaided Eye -- Lunar Showcase: A...”
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3
by Grego, Peter, Mannion, David
Published 2010
Springer New York
Table of Contents: “...Eyes on the Skies -- Galileo Magnifico -- Newton’s Universe -- Surveying the Solar System -- A...”
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4
by Grego, Peter
Published 2009
Springer New York
“... laptop or a PDA, to make a sketch of what you see through your telescope or even with your naked eye...”