Image from page 283 of "Astronomy for the use of schools and academies" (1882)
Publisher: New York : Potter, Ainsworth, & Co.
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress
View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.
Text Appearing Before Image:
256 ASTRONOMY. 263. Distance of Saturn from the Earth.—The meandistance of Saturn from the earth at opposition is eight hun-dred and eighty million miles minus ninety-two millionmiles, or seven hundred and eighty-eight million ; and atconjunction, eight hundred and eighty million miles plusninety-two million, or nine hundred and seventy-two million.Owing to the eccentricity of the orbit of Saturn, his dis-tance from the earth at opposition and at conjunction variesby about a hundred million miles at different times ; but heis so immensely far away, that this is only a small fractionof his mean distance. 264. Apparent Size and Brightness of Saturn. — Theapparent diameter of Saturn varies from about twenty sec-onds to about fourteen seconds. His apparent size at his
Text Appearing After Image:
Fig. 285. extreme and mean distances from the earth is shown inFig. 285. The planet generally shines with the brilliancy of a mod-erate first-magnitude star, and with a dingy, reddish light,as if seen through a smoky atmosphere. 265. Volume and Density of Saturn. — The real diame-ter of Saturn is about seventy thousand miles, and itsvolume over seven hundred times that of the earth. Thecomparative size of the earth and Saturn is shown in Fig.286. This planet is a little more than half as dense asJupiter. 266. The Sidereal and Synodical Periods of Saturn.—Saturn makes a complete revolution round the sun in aperiod of about twenty-nine years and a half, moving inhis orbit at the rate of about six miles a second. The ASTRONOMY. 257 planet passes from opposition to opposition again in aperiod of three hundred and seventy-eight days, or thirteendays over a year. 267. Physical Constitution of Saturn. — The physicalconstitution of Saturn seems to resemble that of Jupiter;but, being twi
Note About Images
Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.