Assertion: magnetic bearing | /r/HasProperty | measured in relation
Facets:
value: to magnetic north
type: LOCATION
Source sentences:
text: A true bearing is measured in relation to the fixed horizontal reference plane of true north, that is, using the direction toward the geographic north pole as a reference point, while a magnetic bearing is measured in relation to magnetic north, that is in relation to the north direction of the Earth's magnetic field lines at the given location.