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The magnetic fields of Mercury, Mars, and moonMariner observations have shown a significant global magnetic field at Mercury with a dipole moment at a tilt of 14 + or - 5 deg relative to the normal of the orbit plane. A presently active dynamo is the most likely origin for the planet's magnetic field. Limited evidence for an intrinsic magnetic field on Mars was obtained by USSR spacecraft in 1971 and 1974. The Martian magnetic field, if it exists, may result from either remanent magnetism or an active dynamo. On the moon, local magnetic fields have been detected by the Apollo and Lunokhod missions, but no global correlation of the steady state values has been noted.
Document ID
19790053167
Acquisition Source
Legacy CDMS
Document Type
Other - Collected Works
Authors
Ness, N. F.
(NASA Goddard Space Flight Center Laboratory for Extraterrestrial Physics, Greenbelt, Md., United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1979
Subject Category
Lunar And Planetary Exploration
Accession Number
79A37180
Distribution Limits
Public
Copyright
Other

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