The Essence of Astronomy Things Every One Should Know About the Sun Moon And
The Essence of Astronomy Things Every One Should Know About the Sun Moon And
Edmund W Edmund Whitman Putnam
The book The Essence of Astronomy Things Every One Should Know About the Sun Moon And was written by author Edmund W Edmund Whitman Putnam Here you can read free online of The Essence of Astronomy Things Every One Should Know About the Sun Moon And book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is The Essence of Astronomy Things Every One Should Know About the Sun Moon And a good or bad book?
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77 78 XKe Essence of Astronomy It revolves about the Sun in slightly over 84 years. Its time of rotation upon its axis is not known, owing both to its great distance of its peculiar axial inclination, and a lack of definite spots or separated markings upon its surface. Its axis is inclined to the plane of its orbit to such a degree that Uranus may be compared to a top rolling on its side, not standing on its point. This is not definitely agreed upon but seems logical since we look at the revolu...tion of its satellites not as with the inner planets edge on but as if we were watching a wheel revolve, the axis being pointed at us; and practically all satellites revolve fairly close to the plane of the rotation of their primary. Uranus moves in its orbit with the slow plane- tary speed of about 4. 3/5 miles per second. , Its mass is 14^ times that of the Earth, but its density only slightly more than one fifth. Its attraction therefore for bodies at its surface is, in spite of its size, somewhat less than the Earth's.
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