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Månens skugga 2

3
Average: 3 (1 vote)
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Månens skugga 1

4
Average: 4 (2 votes)
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Avstånd i universum 1

4
Average: 4 (2 votes)
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Avstand i universum

0
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Aftonstjärnan

2
Average: 2 (1 vote)
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Calculation methodology (Height of the craters on the Moon)

2
Average: 2 (2 votes)
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Sextant (image)

0
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