File:Observing Lunar Distance at Sea.jpg
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Using a sextant, the mariner measures the altitude of a star, the moon, and the angular distance between them. This information will be used to determine Greenwich time.
This method was useful in the era after prediction of lunar distances had become possible and before reliable marine chronometers were readily available.
This diagram was created by Clive Sutherland, and is made freely available under the following licenses:
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current | 17:51, 14 August 2007 | 3,517 × 2,133 (507 KB) | SV Resolution (talk | contribs) | Using a sextant, the mariner measures the altitude of a star, the moon, and the angular distance between them. This information will be used to determine Greenwich time. This method was useful in the era after prediction of lunar distances had become po |
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