Nautical science in its relation to practical navigation, together with a study of the tides and tidal currents (1910)
Poor, Charles Lane, 1866- · New York, London, G. P. Putnam's sons · leaf 66
The Motions of the Earth 43 following diagram, which, however, does not represent the real path of any definite planet: the eccentricity of the ellipse being much exaggerated. For the actual orbits depart so slightly from circles, that, in a diagram drawn to scale, the eye … Fig. 4. The Orbit of tlie Earth could hardly distinguish the difference between ellipse and circle. The half major axis of the ellipse, or the dis- tance CA, is called the " mean distance," and in the case of the earth this is about 93,000,000 miles. This distance of the sun from the earth is so…
Nautical astronomy
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