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An atlas of astronomy; a series of seventy-two plates, with introduction and index (1892)
Ball, Robert S. (Robert Stawell), Sir, 1840-1913 · New York, D. Appleton and company · leaf 17
remotest from the Sun,is the Aphelion of the orbit.The points A and P are knownas the Apses. The time that theplanet takes to go round its orbit is the Periodic Time. The smaller the ratio of 0 S to 0 P,the less is the eccentricity of the orbit, and the more does the ellipse resemble a circle.… … THE ELLIPSE. INTRODUCTION. Explanation of Astronomical Symbols and Abbreviations. % The Sun.d The Moon.£ Mercury.? Venus.© or 5 The Earth. h Hours. m Minutes of Time. s Seconds of Time. 0. r Aries - 1. « Taurus -II. n Gemini - III. <?d Cancer - o 306090 6 11 ¥ 111 Mars. Jupiter. Saturn. Uranus.…Stars · Astronomy
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