HR Lunaire Télescope Cassegrain CFF350 mm F/D 20 ,amélioration de la résolution

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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.
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Seb , Sauveur, JP , JC merci pour vos messages :) 



Il y a 19 heures, sebseacteam a dit :

C'est beau avec toutes ces couleurs :x un pur chef d'oeuvre !


çà change un peu du gris et puis c'est intéressant au niveau géologique ,Alain a fait un travail remarquable dans ce domaine 

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