Elements of astronomy ... with explanatory notes, and questions for examination (1855)
Brocklesby, John, 1811-1889 · New York, Farmer, Brace & co. · leaf 134
lOh. 57m., and that between the autumnal and ver-nal, 178 days, I8h. 55m. The difference between these two intervals, istherefore, seven days, sixteen hours, and two minutes. Explain why it is not? Why does the ellipticity of the earth3 orbit affect the lengthsof the seasons ? How much does the… … POSITION OF THE PERIHELION IN THE YEAR 1800, A.D. will therefore in the course of nearly a thousand centuriesArt. 185, pass round the entire orbit of the earth, andcoincide at definite periods of time, with the solstices andequinoxes, slightly affecting the length of the various sea-sons by this…
Astronomy
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