TABLE X.--SHOWING THE DIFFERENCES IN VELOCITY OF ROTATION OF THE SURFACE OF THE SUN, AT DISTANCES OF 5° FROM EACH OTHER, FROM THE EQUATOR TO 45° OF LATITUDE. -------+----------+--------+--------+--------+--------+------------+ |Circumfr. | | | | |Retardation | Lati- |at each 5°|Time of |Rotation|Rotation|Rotation|in Miles per| tude |Latitude |Rotation|per Day |per Hour|per Min.| Minute for | Degrees| from | (Days) | (Miles)| (Miles)| (Miles)| each | |0° to 45°.| | | | | 5 degrees. | -------+----------+--------+--------+--------+--------+------------+ | | | | | | | 0 | 2,723,767| 25·187 | 108,142| 4506 | 75·10 | ... | | | | | | | | 5 | 2,713,367| 25·222 | 107,581| 4483 | 74·71 | 0·39 | | | | | | | | 10 | 2,682,387| 25·327 | 105,910| 4413 | 73·55 | 1·16 | | | | | | | | 15 | 2,631,058| 25·500 | 103,170| 4299 | 71·65 | 1·90 | | | | | | | | 20 | 2,559,504| 25·737 | 99,441| 4143 | 69·06 | 2·59 | | | | | | | | 25 | 2,468,572| 26·040 | 94,799| 3950 | 65·83 | 3·23 | | | | | | | | 30 | 2,358,852| 26·398 | 89,357| 3723 | 62·05 | 3·78 | | | | | | | | 35 | 2,231,179| 26·804 | 83,242| 3468 | 57·81 | 4·24 | | | | | | | | 40 | 2,086,526| 27·252 | 76,564| 3190 | 53·17 | 4·64 | | | | | | | | 45 | 1,925,994| 27·730 | 69,455| 2894 | 48·23 | 5·06 | -------+----------+--------+--------+--------+--------+------------+ NOTE.--The times of rotation are taken from Messrs. Newcomb and Holden's "Astronomy," p. 290.