Marine Astronomical Navigation Video 30 -Stars crossing the upper & lower meridian
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Marine Astronomical Navigation - Video 29: Stars suitable for Observation
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Marine Astronomical Navigation - Video 40: Long by Chron, Moon
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Marine Astronomical Navigation - Video 32: Equation of Time
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TOP 17 Highest Paying Jobs for the next 5 years (and jobs that have NO future)
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Marine Astronomical Navigation - Video 25: Identification of Isolated Star
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Merchant Shipping Act Content & Amendments
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