Category:Astronomy in the 9th century
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This category has the following 2 subcategories, out of 2 total.
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- 9th-century solar eclipses (1 F)
Media in category "Astronomy in the 9th century"
This category contains only the following file.
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Lunar phases al-Biruni.jpg 2,192 × 1,544; 538 KB
