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The dipole magnetic moment of Neptune is about 2.2 × 10 17 T·m 3 (14 μT·R N 3, where R N is the radius of Neptune). Neptune's magnetic field has a complex geometry that includes relatively large contributions from non-dipolar components, including a strong quadrupole moment that may exceed the dipole moment in strength. By contrast, Earth ...
Over the last two centuries the dipole strength has been decreasing at a rate of about 6.3% per century. At this rate of decrease, the field would reach zero in about 1600 years. [4] However, this strength is about average for the last 7 thousand years, and the current rate of change is not unusual. [5]
The dipole model of the Earth's magnetic field is a first order approximation of the rather complex true Earth's magnetic field. Due to effects of the interplanetary magnetic field (IMF), and the solar wind , the dipole model is particularly inaccurate at high L-shells (e.g., above L=3), but may be a good approximation for lower L-shells.
Magnetic field strength (from lower to higher orders of magnitude) Factor (tesla) SI name SI Value CGS. Value Example of magnetic field strength 10 −18 T attotesla 1 aT: 10 fG: 5 aT: 50 fG: Sensitivity of Gravity Probe B gyroscope's "SQUID" magnetometer (most sensitive when averaged over days) [3] 10 −17 T 10 aT: 100 fG: 10 −16 T 100 aT ...
Plot showing field lines (which, in three dimensions would describe "shells") for L-values 1.5, 2, 3, 4 and 5 using a dipole model of the Earth's magnetic field. The L-shell, L-value, or McIlwain L-parameter (after Carl E. McIlwain) is a parameter describing a particular set of planetary magnetic field lines.
English: Absolute magnitude of the axial dipole component of Earth's magnetic field from 1600 to 2020, according to three models: CALS3k.4, gufm1, and IGRF-12. Date 29 May 2016
The agency said Tuesday that Neptune Resources, the maker of Neptune’s Fix, agreed to voluntarily recall its products, which include Neptune’s Fix Elixir, Neptune’s Fix Extra Strength Elixir ...
Over the last two centuries the dipole strength has been decreasing at a rate of about 6.3% per century. [13] At this rate of decrease, the field would be negligible in about 1600 years. [35] However, this strength is about average for the last 7 thousand years, and the current rate of change is not unusual. [36]