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grelots

Construire un binoscope avec...

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Je connais... C'est super... Tu as pas mal de devis... Et la concurrence fait que tu te retrouves avec rapidement le prix le plus bas... Il y a des notes qui font que tu sais si le gars est sérieux... J'ai fais il y a quelques temps des bagues en laiton...

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Planetary Astronomy
Observing, imaging and studying the planets
A comprehensive book about observing, imaging, and studying planets. It has been written by seven authors, all being skillful amateur observers in their respective domains.
More information on www.planetary-astronomy.com

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