The complete nautical astronomer

The complete nautical astronomer

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Chronometer times are commonly in error by an hour, or a multiple of five minutes, or a minute. In order to check chronometer times it is a good practice to have the chartroom clock time recorded for the instant of observation. The fact that the chronometer dial registers only 12, and not 24 hours often leads to an error of 12 hours in the G.M.T. No self-respecting nautical astronomer makes this mistake in practice; for, knowing the approximate local time and the shipa#39;s longitude, it is aanbsp;...

Title:The complete nautical astronomer
Author: Charles H. Cotter
Publisher:Elsevier Publishing Company - 1969

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