Pioneer VI
FEB 01, 1966
DOI: 10.1063/1.3048062
The solar wind at the end of December was much slower than at times of high solar activity. The figure, determined from experiments aboard the interplanetary probe Pioneer VI, is about 670 000 mph. Values as high as two million mph have been recorded in periods of high solar activity. Aside from solar‐wind studies, the artificial planet carries a number of experiments to record aspects of interplanetary conditions.
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© 1966 American Institute of Physics
