Young, Charles A. (Charles Augustus), 1834-1908, Young, Anne Sewell, b. 1871., ed · Boston, New York [etc.] Ginn and Company · leaf 133
dereal Revolution of the Sun. T being the true period of the suns rotation, E the length of theyear, and S the observed synodic rotation. This gives T— 25.35. Different observers, however, get slightly different results. Car-rington finds 25.38 ; Spoerer, 25.23. The paths of the spots across the… … DEC.. MARCH. JUNE-. SEPT. Fig. 43. — Path of Sun Spots across the Suns Disc. first of September. Twice a year the paths become straight,when the earth is in the plane of the suns equator, — on June3d and December 5th. Fig. 43 illustrates this. 120 PECULIAR LAW OF THE SUNS ROTATION. [§ 181 181.…
Astronomy · Constellations
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