Moulton, Forest Ray, 1872-1952 · New York, The Macmillan company · leaf 342
Fig. 112. — Jupiter, Sept. 7, 1913 (Barnard). CH. IX, 179] THE PLANETS 295 30,000 miles long parallel to the equator. In a year it hadchanged to a bright red color and was by far the most con-spicuous object on the planet. It has since then been knownas the great red spot, but it has undergone many… … Fig. 113. — Photographs of Jupiter (E. C. Slipher, Lowell Observatory). composed seems to be sinking back beneath the vapors whichsurround the planet. A very remarkable thing in connection with the red spotwas that its period of rotation increased 7 seconds the firsteight years following its…
Astronomy
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