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Geographic range of a light

Geographic range of a light

Lighthouse visibility is available on charts, both paper and digital, and is stated in terms of nominal range.

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Celestial navigation series, part 12

In this installment, we’ll discover moon sights and how they add a useful celestial body to your arsenal. We will also look at how to use celestial navigation techniques to determine your vessel’s compass deviation.

Celestial navigation series, part 11

In this installment, we’ll cover how to reduce a noon sight and also how to get latitude by shooting Polaris, the pole star.

Celestial navigation series, part 10

In this installment, we’ll cover how to reduce a planet sight; we’ll include a step-by-step breakdown of how to reduce star and planet sights, and we will also include a star sight problem to solve as a way to review what you learned in the last installment.

Celestial navigation series, part nine

In this installment, we’ll cover how to reduce a star sight and how to use HO 249 Vol. 1 to precalcuate what stars will be available.

Celestial navigation series, part eight

In this installment, we’ll cover running fixes and the hierarchy of positions from dead reckoning position to multiple simultaneous lines of position fixes.

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