| Kieli | Käännökset |
|---|---|
| ruotsi | missvisning, deklination, magnetisk deklination |
| suomi | variaatio |
| Monikko | magnetic variations |
(military, nautical, navigation) In navigation, at a given place and time, the horizontal angle between the true north and magnetic north measured east or west according to whether magnetic north lies east or west of true north.
Example of magnetic declination showing a compass needle with a "positive" (or "easterly") variation from geographic north. Ng is geographic or true north, Nm is magnetic north, and δ is magnetic declination.
(military, nautical, navigation) In navigation, at a given place and time, the horizontal angle between the true north and magnetic north measured east or west according to whether magnetic north lies east or west of true north.
Level curves drawn on a declination map to denote the magnetic declination, described by signed degrees. Each level curve is an isogonic line.
(military, nautical, navigation) In navigation, at a given place and time, the horizontal angle between the true north and magnetic north measured east or west according to whether magnetic north lies east or west of true north.
IGRF, 2005