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granulation solaire

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quelqu'un a-t-il deja reussi a observer de maniere evidente la granulation solaire avec une lunette Astrophysics 130 mm ou Takahashi 128 mm ou Takahashi 102 mm ?
Si oui quel etait le systeme d'attenuation choisi (filtre pleine ouverture ou helioscope d'Herschel ou pentaprisme) ?
Merci d'avance pour vos reponses.

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