The Story of the Heavens by Robert S. Ball

Author:Robert S. Ball [Ball, Robert S.]
Language: eng
Format: epub
ISBN: 9781531234270
Amazon: B079ZJWDC6
Barnesnoble: B079ZJWDC6
Goodreads: 109866061
Published: 2008-12-02T00:00:00+00:00

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CHAPTER XV.

NEPTUNE.

Discovery of Neptune—A Mathematical Achievement—The Sun’s Attraction—All Bodies attract—Jupiter and Saturn—The Planetary Perturbations—Three Bodies—Nature has simplified the Problem—Approximate Solution—The Sources of Success—The Problem Stated for the Earth—The Discoveries of Lagrange—The Eccentricity—Necessity that all the Planets revolve in the same Direction—Lagrange’s Discoveries have not the Dramatic Interest of the more Recent Achievements—The Irregularities of Uranus—The Unknown Planet must revolve outside the Path of Uranus—The Data for the Problem—Le Verrier and Adams both investigate the Question—Adams indicates the Place of the Planet—How the Search was to be conducted—Le Verrier also solves the Problem—The Telescopic Discovery of the Planet—The Rival Claims—Early Observation of Neptune—Difficulty of the Telescopic Study of Neptune—Numerical Details of the Orbit—Is there any Outer Planet?—Contrast between Mercury and Neptune.

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