celestial navigation - A method of using the stars, sun and moon to determine one's position.
celestial navigation
to calculate your position using time, the position of celestial bodies, and mathematical tables
celestial sphere ...
celestial navigation - The use of heavenly bodies for the determination of a vessel's position.
the celestial navigation tool used to measure the angle to the sun or planets. The process is a sextant shot.
shackle ...
Used with celestial navigation.
SHEAR PIN: A safety device, used to fasten a propeller to its shaft; it breaks when the propeller hits a solid object, thus preventing further damage.
Confused water action found at places where tidal currents meet chronometer A highly accurate timepiece, set to Greenwich Mean Time and used for celestial navigation.
Prior to the advent of celestial navigation, sailors used a method known as dead (deduced) reckoning. Starting from a known point on land, each day's new position was charted by determining the ships speed and direction throughout the day.
chronometer: a highly accurate timepiece, set to Greenwich Mean Time and used for celestial navigation. chute: colloquial for spinnaker-a lightweight headsail set from a boat that is reaching or running before the wind.
A sighting taken for celestial navigation at noon, when the sun is at its highest point in the sky.
north
One of the 4 cardinal compass points. North is the direction toward the North Pole and is at 0° on a compass card.
Sextant: A navigational instrument used to determine the vertical position of an object such as the sun, moon or stars. Used with celestial navigation.
Spinnaker: A very large lightweight sail used when running or on a broad reach.
Know the limitations of your instrument and measurement techniques and include them in the assessment of the situation (much as celestial navigation positions are plotted as circles rather than points).
There is no celestial navigation any more. The whole test has no limit in time. I needed 4 hours, mainly because the 10 chart-plotting problems took me (and the other candidates) about 2 hours and 15 min.
One brand of radio besides giving local weather forecast will broadcast Greenwich Mean Time, this radio is a must if you 're into celestial navigation. Other places to get the weather might be sporting good stores or even the internet.
 See also: Course, Navigation, Sailing, Point, Boat
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