Abstract
OWING to very ill-health, I have not been able to make observations of Jupiter during the last few weeks, but have been interested in receiving the results of some other observers. It appears that the great red spot is rapidly accelerating its motion, so that its longitude is decreasing, and with a continuation of this behaviour the spot will ultimately correspond with the position of the zero meridian of system ii. of Crommelin's ephemerides. The present longitude of the marking is about 25°, which is the same as it was in the summer of 1898, so that the mean period of rotation during the last six years has been identical with the rate of system ii., viz. 9h. 55m. 40.63s.
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DENNING, W. The Great Red Spot on Jupiter. Nature 70, 480 (1904). https://doi.org/10.1038/070480d0
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DOI: https://doi.org/10.1038/070480d0
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