Hronika osvoeniya kosmosa: 1999 god.
7.01.2001 1:18 | A. B. Zheleznyakov/Enciklopediya Kosmonavtika
Astrometriya
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Astronomicheskie instrumenty
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Astronomicheskoe obrazovanie
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Astrofizika
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Istoriya astronomii
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Kosmonavtika, issledovanie kosmosa
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Lyubitel'skaya astronomiya
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Planety i Solnechnaya sistema
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Solnce