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- Magnetic_declination abstract "Magnetic declination or magnetic variation is the angle on the horizontal plane between magnetic north (the direction in which the north end of a compass needle points, corresponding to the direction of the Earth's magnetic field lines) and true north (the direction along a meridian towards the geographic North Pole). This angle varies depending on one's position on the Earth's surface, and over time. Somewhat more formally, Bowditch defines variation as “the angle between the magnetic and geographic meridians at any place, expressed in degrees and minutes east or west to indicate the direction of magnetic north from true north. The angle between magnetic and grid meridians is called grid magnetic angle, grid variation, or grivation.”By convention the declination is positive when magnetic north is east of true north, and negative when it is to the west. Isogonic lines are lines on the Earth's surface along which the declination has the same constant value, and lines along which the declination is zero are called agonic lines. The lowercase Greek letter δ (delta) is frequently used as the symbol for magnetic declination.The term magnetic deviation is sometimes used loosely to mean the same as magnetic declination, but more correctly it refers to the error in a compass reading induced by nearby metallic objects, such as on board a ship or aircraft.Magnetic declination should not be confused with magnetic inclination, also known as magnetic dip, which is the angle that the Earth's magnetic field lines make with the horizontal plane (i.e. upwards or downwards).".
- Magnetic_declination thumbnail Magnetic_declination.svg?width=300.
- Magnetic_declination wikiPageExternalLink mdcal-eng.php.
- Magnetic_declination wikiPageExternalLink WMMGSpreadsheet.htm.
- Magnetic_declination wikiPageExternalLink geomag.usgs.gov.
- Magnetic_declination wikiPageExternalLink www.magnetic-declination.com.
- Magnetic_declination wikiPageExternalLink declination.
- Magnetic_declination wikiPageExternalLink igrfwmm.
- Magnetic_declination wikiPageExternalLink mobileDeclination.
- Magnetic_declination wikiPageID "308058".
- Magnetic_declination wikiPageRevisionID "602339313".
- Magnetic_declination date "February 2014".
- Magnetic_declination hasPhotoCollection Magnetic_declination.
- Magnetic_declination reason "Is this trying to say that changes in declination *are* highly predictable, or just that the model assumes this?".
- Magnetic_declination reason "Why would charts based on true north need to be updated to reflect changes in magnetic variation?".
- Magnetic_declination subject Category:Angle.
- Magnetic_declination subject Category:Geomagnetism.
- Magnetic_declination subject Category:Orientation.
- Magnetic_declination comment "Magnetic declination or magnetic variation is the angle on the horizontal plane between magnetic north (the direction in which the north end of a compass needle points, corresponding to the direction of the Earth's magnetic field lines) and true north (the direction along a meridian towards the geographic North Pole). This angle varies depending on one's position on the Earth's surface, and over time.".
- Magnetic_declination label "Declinación magnética".
- Magnetic_declination label "Declinazione magnetica".
- Magnetic_declination label "Declinação magnética".
- Magnetic_declination label "Deklinacja magnetyczna".
- Magnetic_declination label "Deklination (Geographie)".
- Magnetic_declination label "Déclinaison magnétique terrestre".
- Magnetic_declination label "Magnetic declination".
- Magnetic_declination label "Magnetische declinatie".
- Magnetic_declination label "Магнитное склонение".
- Magnetic_declination label "شمال مغناطيسي".
- Magnetic_declination label "地磁偏角".
- Magnetic_declination sameAs Magnetická_deklinace.
- Magnetic_declination sameAs Deklination_(Geographie).
- Magnetic_declination sameAs Declinación_magnética.
- Magnetic_declination sameAs Déclinaison_magnétique_terrestre.
- Magnetic_declination sameAs Declinazione_magnetica.
- Magnetic_declination sameAs 편각.
- Magnetic_declination sameAs Magnetische_declinatie.
- Magnetic_declination sameAs Deklinacja_magnetyczna.
- Magnetic_declination sameAs Declinação_magnética.
- Magnetic_declination sameAs m.01st55.
- Magnetic_declination sameAs Q243289.
- Magnetic_declination sameAs Q243289.
- Magnetic_declination wasDerivedFrom Magnetic_declination?oldid=602339313.
- Magnetic_declination depiction Magnetic_declination.svg.
- Magnetic_declination isPrimaryTopicOf Magnetic_declination.
