Mercury's magnetic field

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Mercury's magnetic field

Post by fearlove on Sun Dec 04, 2011 2:40 pm

The magnetic field is about 1.1% as strong as Earth's.[10] At the Hermean equator, the relative strength of the magnetic field is around 300 nT.[13] Although much weaker than Earth's magnetic field (about 1/100 its magnitude) according to Mariner 10 data, the magnetic field is still strong enough to deflect solar wind emissions, inducing a magnetosphere. Because Mercury's magnetic field is weak while the interplanetary magnetic field it interacts with in its orbit (a perihelion at 0.307 AU and an aphelion at 0.467 AU) is relatively strong, the solar wind dynamic pressure at Mercury′s orbit on the average is also a factor of three larger than that at Earth, for example. Mercury's magnetic field being weaker than Earth's may be because its core had cooled and solidified more quickly than the Earth.[14] Scientists have detected Mercury's magnetic field to be weaker than Jupiter's moon G

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