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| − | The astrolabe was a compact instrument used to observe and calculate the position of celestial bodies before the invention of the [[sextant]]. | + | [[Image:Astrolabe2.jpg|right|frame]] |
| − | | + | The '''astrolabe''' was a compact instrument used to observe and calculate the position of celestial bodies before the invention of the [[sextant]]. |
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| | [[Category:Astronomy]] | | [[Category:Astronomy]] |