Practical astronomy

Discussions dedicated to exchanges on the practice of astronomy.

44569 topics in this forum

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  1. A VOIR

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  2. miroir du commerce

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  3. 2 questions

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  4. 5èmes RAP

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  5. A propos des CCD couleur

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  6. à quel ISO ?

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  7. aide observation

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  8. Aurora borealis

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  9. barlow 5X

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