History of Astronomy |
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Page 41
... perihelion ( nearest to the sun ) . The position of the planet at B is the aphelion ( farthest from the sun ) . The angle ASP is the anomaly when the planet is at P. CA or a line drawn from Sto D is the mean distance of the planet from ...
... perihelion ( nearest to the sun ) . The position of the planet at B is the aphelion ( farthest from the sun ) . The angle ASP is the anomaly when the planet is at P. CA or a line drawn from Sto D is the mean distance of the planet from ...
Page 63
... perihelion on April 13th , 1759. In his communication to the French Academy , he said that a comet travelling into such distant regions might be exposed to the influence of forces totally unknown , and even of some planet too far ...
... perihelion on April 13th , 1759. In his communication to the French Academy , he said that a comet travelling into such distant regions might be exposed to the influence of forces totally unknown , and even of some planet too far ...
Page 64
... perihelion on March 13th , 1759 . This fact was a startling confirmation of the New- tonian theory , because it was a new kind of calcula- tion of perturbations , and also it added a new member to the solar system , and gave a prospect ...
... perihelion on March 13th , 1759 . This fact was a startling confirmation of the New- tonian theory , because it was a new kind of calcula- tion of perturbations , and also it added a new member to the solar system , and gave a prospect ...
Page 65
... perihelion , and no comet had ever been observed with a perihelion distance from the sun greater than THE DYNAMICAL PERIOD 65.
... perihelion , and no comet had ever been observed with a perihelion distance from the sun greater than THE DYNAMICAL PERIOD 65.
Page 66
George Forbes. observed with a perihelion distance from the sun greater than four times the earth's distance . Lexell was the first to suspect that this was a new planet eighteen times as far from the sun as the earth is . In January ...
George Forbes. observed with a perihelion distance from the sun greater than four times the earth's distance . Lexell was the first to suspect that this was a new planet eighteen times as far from the sun as the earth is . In January ...
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accepted accurate ancient appear astronomers attraction bodies bright calculations called catalogue cause centre century Chinese circle comet compared complete Copernicus determined diameter direction discovered discovery distance earth eclipse effect elements enabled epicycles equal error explain fact fixed follow force four Galileo gave give given gravitation heavens held Herschel increased interesting Jupiter Kepler knowledge known later LIBRARIES light lunar Mars mass mathematical mean measured method miles moon moon's motion move Newton noticed object observations Observatory opposition orbit original parallax pass period photographic physical planet planetary pole position predicted progress proper motion proved records researches revolve ring rotation round Royal satellites seems seen showed SIGILLUM solar system spectroscope spectrum stars studied sun's supposed surface tables telescope theory tion trace true Tycho Brahe UNIVERSITY VERITAS