Abstract
JUPITER.—Observers of the surface of this planet have remarked that not for many years past has Jupiter presented so many interesting details as it has in the apparition that is now passing away. It has been noticed that the south equatorial belt has been unusually faint and its components extremely narrow, but it has gained redness in some parts, whilst the north equatorial belt has been losing its redness. This apparent transference of colour appears to be a periodic phenomenon. The feature known as the south tropical disturbance, first seen in 1901, the movement of which, especially with reference to that of the red spot, has been observed continuously since that time, became faint in the early months of this year, and in April this marking, together with the hollow in the south equatorial belt, in which the red spot lies, had quite disappeared, whilst the spot itself was seen only by some observers and in favourable circumstances.
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Our Astronomical Column . Nature 103, 234 (1919). https://doi.org/10.1038/103234a0
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DOI: https://doi.org/10.1038/103234a0