Recreations in astronomy : with directions for practical experiments and telescopic work (1879)
Warren, Henry White, 1831-1912 · New York : Harper & Brothers · leaf 109
d tinction of light and heat as long as the gyratorymovement continues. Finally, the hydrogen set freeat the base of the whirlpool becomes reheated at this 92 A SOLAR SYSTEM. great depth, and rises up tumultuously around the whirl-pool, forming irregular jets, which appear above thechromosphere.… … Fig. 36.—Solar Spot, by Langley. have, like those of the earth, a marked tendency, first toincrease and then to break up, and thus form a row ofspots extending along the same parallel/ A spot of 20,000 miles diameter is quite small; therewas one 14,816 miles across, visible to the naked efor a week…
Astronomy
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