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Legend (historical_declination)

Modeled Poles (yearly) (0)
Observed Pole Locations (1)
Modeled Historical Track of Poles (2)
2012 - 2025 2012 - 2025
1998 - 2011 1998 - 2011
1985 - 1997 1985 - 1997
1971 - 1984 1971 - 1984
1957 - 1970 1957 - 1970
1944 - 1956 1944 - 1956
1930 - 1943 1930 - 1943
1917 - 1929 1917 - 1929
1903 - 1916 1903 - 1916
1889 - 1902 1889 - 1902
1876 - 1888 1876 - 1888
1862 - 1875 1862 - 1875
1848 - 1861 1848 - 1861
1835 - 1847 1835 - 1847
1821 - 1834 1821 - 1834
1808 - 1820 1808 - 1820
1794 - 1807 1794 - 1807
1780 - 1793 1780 - 1793
1767 - 1779 1767 - 1779
1753 - 1766 1753 - 1766
1739 - 1752 1739 - 1752
1726 - 1738 1726 - 1738
1712 - 1725 1712 - 1725
1699 - 1711 1699 - 1711
1685 - 1698 1685 - 1698
1671 - 1684 1671 - 1684
1658 - 1670 1658 - 1670
1644 - 1657 1644 - 1657
1630 - 1643 1630 - 1643
1617 - 1629 1617 - 1629
1603 - 1616 1603 - 1616
1590 - 1602 1590 - 1602
Isogonic Lines (Web Mercator) (3)
+, +,
+, Y +, Y
-, -,
-, Y -, Y
0, Y 0, Y
Isogonic Lines (Arctic) (4)
+, +,
+, Y +, Y
-, -,
-, Y -, Y
0, Y 0, Y
Isogonic Lines (Antarctic) (5)
+, +,
+, Y +, Y
-, -,
-, Y -, Y
0, Y 0, Y