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vuoksi ja luode

3
Average: 3 (1 vote)
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Наблюдения на Луната и изследване на лунната повърхност

4.42857
Average: 4.4 (7 votes)
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Sonnensystem

0
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Manufacturing Simple Astronomy Measuring Tools

3
Average: 3 (2 votes)
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Galaxy (photo)

0
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Sonnensystem (Java-Applet)

5
Average: 5 (1 vote)
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Planeten unseres Sonnensystems (Präsentationshandout)

0
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Solar Rotation (Students Activities)

4
Average: 4 (1 vote)
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Planetary Nebula

4
Average: 4 (1 vote)
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Picture of Saturn (Liverpool Telscope)

0
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