Letters on Astronomy: in which the Elements of the Science are Familiarly Explained in Connection with Biographical Sketches of the Most Eminent AstronomersOlmsted, Denison
Science
Letters on Astronomy: in which the Elements of the Science are Familiarly Explained in Connection with Biographical Sketches of the Most Eminent Astronomers
Olmsted, Denison
Astronomy
Saturn, as well as Jupiter, has within itself a system on a scale of
great magnificence. In size it is next to Jupiter the largest of the
planets, being seventy-nine thousand miles in diameter, or about one
thousand times as large as the earth. It has likewise belts on its
surface, and is attended by seven satellites. But a still more wonderful
appendage is its _Ring_, a broad wheel, encompassing the planet at a
great distance from it. As Saturn is nine hundred millions of miles from
us, we require a more powerful telescope to see his glories, in all
their magnificence, than we do to enjoy a full view of the system of
Jupiter. When we are privileged with a view of Saturn, in his most
favorable positions, through a telescope of the larger class, the
mechanism appears more wonderful than even that of Jupiter.
Saturn's ring, when viewed with telescopes of a high power, is found to
consist of two concentred rings, separated from each other by a dark
space. Although this division of the rings appears to us, on account of
our immense distance, as only a fine line, yet it is, in reality, an
interval of not less than eighteen hundred miles. The dimensions of the
whole system are, in round numbers, as follows:
Miles.
Diameter of the planet, 79,000
From the surface of the planet to the inner ring, 20,000
Breadth of the inner ring, 17,000
Interval between the rings, 1,800
Breadth of the outer ring, 10,500
Extreme dimensions from outside to outside, 176,000
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