Total Number Of Rotations Research Articles

Early History of the Great Red Spot on Jupiter

HAVING collected a number of observations and drawings of objects bearing a suggestive resemblance to this feature, and made during the period from September 5, 1831, to November 14, 1869, I have been enabled to determine the rotation period during that time. This, taken in combination with my discussion of the observations from November 14, 1869, to July 30, 1898 (NATURE, August 4, 1898, and Monthly Notices R. A. S., vol. lviii. No. 9), extends the whole interval over which the spot can be pretty certainly identified to nearly 67 years, or 24,435 days, during which the mean rate of rotation was 9h. 55m. 36˙2S. and the total number of rotations 59,071.

Early History of the Great Red Spot on Jupiter

HAVING collected a number of observations and drawings of objects bearing a suggestive resemblance to this feature, and made during the period from September 5, 1831, to November 14, 1869, I have been enabled to determine the rotation period during that time. This, taken in combination with my discussion of the observations from November 14, 1869, to July 30, 1898 (NATURE, August 4, 1898, and Monthly Notices R. A. S., vol. lviii. No. 9), extends the whole interval over which the spot can be pretty certainly identified to nearly 67 years, or 24,435 days, during which the mean rate of rotation was 9h. 55m. 36˙2S. and the total number of rotations 59,071.