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Astronomical spectroscopy for amateurs
Patrick Moore's Practical Astronomy Series
Copies:
Zentrale:E02 a ast 050 e/411
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2
The Herschel objects, and how to observe them
Astronomers' observing guides
Copies:
Zentrale:E02 a ast 050 ef/480
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4
Guideposts to the stars. Exploring the skies throughout the..:
Copies:
Zentrale:E02 a ast 167 ff/610