Solar Cycle Variation of Exospheric Temperatures Mars and Venus: A Prediction for Mariner 6 and 7

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Science  25 Jul 1969:
Vol. 165, Issue 3891, pp. 386-388
DOI: 10.1126/science.165.3891.386


Calculations have been made to determine the effects of variations in the extreme ultraviolet solar radiation on the upper atmospheres of mars and Venus. The results indicate that the exospheric temperature from 300°K to 600°K during the solar cycle, with a corresponding range on Venus of 450°K to 850°K. At the present time, the temperature of the Martain exosphere should be approximately 500°K.

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