IMPA CODE：370332
產品名稱:航海六分儀 4×40mm
英文名稱：Nautical sextants
規格型號：SEXTANT WITHOUT LIGHT 4X40MM_
產地：中國上海
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- IMPA CODE：370332
- 產品名稱:航海六分儀 4×40mm
- 英文名稱：Nautical sextants
- 規格型號：SEXTANT WITHOUT LIGHT 4X40MM_
- 產地：中國上海
- 產品描述：A sextant is an instrument for measuring the angle between two objects by bringing into coincidence to the eye of the observer, rays of light received directly from one object and reflected from the other. Its principal use is to measure the altitudes of celestial bodies above the visible sea horizon. Available in various types. When ordering, specify escope (magnifying & lens diameter) and whether the sextant should be with or without illumination. Furnished with a wooden or plastic case
