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Maa ja Kuu ikiliikkujina

4
Average: 4 (2 votes)
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Taivaallinen ikiliikkuja

3.5
Average: 3.5 (2 votes)
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Omloppsbana - snurrigt värre

4
Average: 4 (2 votes)
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Analemma

3.666665
Average: 3.7 (3 votes)
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Bygga och använda ett solur

3.5
Average: 3.5 (2 votes)
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Jordaxelns lutning

3.5
Average: 3.5 (4 votes)
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Dagens längd

3
Average: 3 (2 votes)
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Solen

3
Average: 3 (1 vote)
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Istid

2.75
Average: 2.8 (4 votes)
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Galaxtyper

4.5
Average: 4.5 (2 votes)
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