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Entering the Magnetic Bubble Target Name:   Saturn Spacecraft:   Cassini Orbiter Instrument:   Dual Technique Magnetometer Produced by:   NASA/JPL/Southwest Research Institute/Imperial College London Copyright:  NASA Copyright Free Policy Cross Reference:   PIA06348 Date Released:  1 July 2004 Related Documents Saturn Cassini At Saturn Download Options Name Type Width x Height Size PIA06348.jpg JPEG 720 x 540 57K PIA06348.tif TIFF 720 x 540 244.3 kB This graph illustrates the Cassini spacecraft's transition into Saturn's magnetosphere from an outer region called the magnetosheath. A magnetosphere is a magnetic envelope of charged particles that surrounds some planets, including Earth. In between it and a boundary called the bow shock -- where solar winds bend to avoid the magnetosphere -- is an area called the magnetosheath. These data (bottom panel) were taken by Cassini's plasma spectrometer, which measures the energy and electric charge of particles such as protons and electrons. In this graph, the color green represents the highest intensity particles. The top panel shows the strength of the magnetic field as measured by the dual technique magnetometer instrument on Cassini. The field intensified as Cassini entered the magnetosphere.

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