Category:NDC10 442 Practical astronomy

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Subcategories

This category has the following 4 subcategories, out of 4 total.

NDC10 442.9 (3 C)

天

天体望遠鏡の作り方 (2 F)
天球儀説明書 (1 F)

趣

趣味の天体観測 (1 F)

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NDC10 44 Astronomy. Space science