magnetic bearing - The bearing of an object after magnetic variation has been considered, but without compensation for magnetic deviation.
Magnetic Bearing - Bearing relative to magnetic north; compass bearing corrected for deviation.
You can take magnetic bearings to distant objects to establish a LOP by sighting over the top of the compass and reading the bearing in that direction. Be sure to use the magnetic compass rose on the chart.
Determine your magnetic bearing by reading where the course line intersects with the inside degree circle. Write this course on your chart above the plotted line in degrees magnetic (Example: C 345 M).
Magnetic bearing: An absolute bearing (qv) using magnetic north.
Magnetic north: The direction towards the North Magnetic Pole. Varies slowly over time.
Mainbrace: One of the braces attached to the mainmast.
A true bearing is one expressed in degrees relative to true north; a magnetic bearing is one expressed in degrees relative to magnetic north. bear off or bear away 1. To uphelm and run more to leeward; 2.
The navigator uses the magnetic bearing of this line to warn him when his course is leading him too close to the danger. daymark: the colored and numbered or lettered sign placed on many beacons to identify them.
Deviation can be discovered by swinging the boat as she lies at her moorings, having first obtained the true magnetic bearing of some distant object, such as a lighthouse or a church steeple.
Line of Position (LOP) - A single magnetic bearing from a stationary marker “Magnetic Bearing' (MB) is another term for LOP
List - Continuous leaning to one side
List - Sideways tilt of a boat due to poor boat trim ...
A card marked in degrees and having sightings on it that is used to take bearings relative to the ship, rather than magnetic bearings as taken with a compass.
pendant
A small line attached to a mooring chain. Also sometimes called a pennant.
" If the bearing to another vessel does not change, and the range is getting less, you are going to bump. Note that this refers to the true or magnetic bearing, not the relative value. Submitted by Steven Hodgson.
 See also: Boat, Line, Navigation, Bearing, Course
  
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