Astronomy for the use of schools and academies (1882)
Gillet, J. A. (Joseph Anthony), 1837-1908, Rolfe, W. J. (William James), 1827-1910 · New York : Potter, Ainsworth, & Co. · leaf 157
thesun placed at thecentre of the earth,the sun wouldcompletely fill themoons orbit, andreach nearly as far beyond it in every direction as it is from the earth to the moon. The circumference of the sun as compared with the moons orbit is shown in Fig. 154. The volume of the sun is 1,305,000 times… … Fig. 154. To find the mass of the sun, we first ascertain the distance ASTRONOMY. 141 the earth would draw the moon towards itself in a given time,were the moon at the distance of the sun, and then form theproportion : as the distance the earth would draw the moontowards itself is to the distance…
Astronomy
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