A new manual of the elements of astronomy, descriptive and mathematical .. (1868)
Kiddle, Henry, 1824-1891 · New York, Ivison, Phinney, Blakeman & co.; Chicago, S.C. Griggs & co. · leaf 108
the inference drawn hy Sir John Herschel ? c. Mass of the sun compared with thatof the planets ? THE SUE. 103 This shows that the mass of the sun is greater than the average massof the planets. 150. The sun rotates from west to east on an axis nearlyperpendicular to the plane of the ecliptic, the… … A SPOT PASSING ACBOSS THE DISC. a. A particular spot which can be identified by its appearance firstappears on the eastern limb, or edge, of the disc, passes across to thewestern limb, and then disappears ; but after about two weeks, re-ap-pears on the eastern limb, completing an entire revolution…
Astronomy
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