Page:The Solar System - Six Lectures - Lowell.djvu/100

82

The Solar System

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RELATIVE SIZE AND POSITION OF THE SATELLITES.

No.	Name.				Diameter in Miles.					Distance from Saturn in Miles.
I.	Mimas	.	.	.	800	.	.	.	.	117,000
II.	Enceladus	.	.	.	800	.	.	.	.	150,000
III.	Tethys	.	.	.	1,200	.	.	.	.	186,000
IV.	Dione	.	.	.	1,100	.	.	.	.	238,000
V.	Rhea	.	.	.	1,500	.	.	.	.	332,000
VI.	Titan	.	.	.	3,500	.	.	.	.	771,000
VII.	Hyperion	.	.	.	500	.	.	.	.	934,000
VIII.	lapetus	.	.	.	2,000	.	.	.	.	2,225,000

Relative position of the masses of the satellites.It will be seen that the largest Titan - occupies a central position in the line. This might seem accidental until one recalls the fact that Jupiter, the largest of the planets, holds the same relative place in the solar system: for the planetary system tabulated in the same way is as follows :—

SOLAR SYSTEM.

No.	Name.			Diameter in miles.						Distance from Sun in Millions of Miles.
I.	Mercury	.	.	.	3,300	.	.	.	.	.	36
II.	Venus	.	.	.	7,630	.	.	.	.	.	67
III.	Earth	.	.	.	7,918	.	.	.	.	.	93
IV.	Mars	.	.	.	4,220	.	.	.	.	.	141
V.	Asteroids	.	.	.	10-500	.	.	.	.	.	250
VI.	Jupiter	.	.	.	86,500	.	.	.	.	.	483
VII.	Saturn	.	.	.	72,500	.	.	.	.	.	886
VIII.	Uranus	.	.	.	31,900	.	.	.	.	.	1,782
IX.	Neptune	.	.	.	34,800	.	.	.	.	.	2,792